qua

阅读 / 问答 / 标签

孙楠唱的歌曲中的"be there or be square"是什么意思啊?

在这里或在广场上

be there or be square里面的square指啥?

哈哈哈有点想笑,其实这句话美国挺常用的。square其实就是正方形的意思,也就是不是圆形,not a round=not around整句话的意思其实是,你在或不在我都在那等你,于是就是不见不散啦

“Be There or Be Square ”的准确翻译意思是?

《不见不散》电影名《Be Tere or Be Square》

不见不散为什么要翻译成Be there or be square ?

上面的,你所谓的翻译就是现时的CHINESE-ENGLISH,只是字面上的翻译

Be there or be square!中文意思是?

Be there or be square 中 文 意 思 是 [ 不 见 不 散 ] 或者 英 文 翻 译 为 [ no see no go ] . Be there or be square 是俚语化的英语。 square 俚语有“无趣的”“古板的”意思。 Be there or be square 就是“如果不赴约就是无趣的人”,比较合乎国语习惯的说法就是“不见不散”了。 俚语字典里的解释: Be there or be square A square is a ordinary person so if you do not show up you will be a square or ordinary person

win8蓝屏出现“ driver irql not less or equal (tsysdrv64.sys)”,是什么原因?

错误分析:通常是由有问题的驱动程序引起的(比如罗技鼠标的logitech MouseWare 9.10和9.24版驱动程序会引发这个故障). 同时,有缺陷的内存、 损坏的虚拟内存文件、 某些软件(比如多媒体软件、杀毒软件、备份软件、DVD播放软件)等也会导致这个错误. 解决方案:检查最新安装或升级的驱动程序(如果蓝屏中出现"acpi.sys"等类似文件名, 可以非常肯定时驱动程序问题)和软件; 测试内存是否存在问题; 进入"故障恢复控制台", 转到虚拟内存页面文件Pagefile.sys所在分区, 执行"del pagefile.sys"命令, 将页面文件删除; 然后在页面文件所在分区执行 "chkdsk /r"命令;进入Windows后重新设置虚拟内存.如果在上网时遇到这个蓝屏, 而你恰恰又在进行大量的数据下载和上传(比如:网络游戏、BT下载),那么应该是网卡驱动的问题, 需要升级其驱动程序.蓝屏一般情况是驱动不兼容造成的,这个很难查出是哪个驱动不兼容,建议重装下,要是想要原装的,去找售后恢复一下

spss中的chi-square tests怎么读

一般叫卡方检验我替别人做这类的数据分析蛮多的

square后面的qu要浊化吗?

correct!

440000 square meter s 用英文怎么读?

英语读作forty -four thousand square meters

square"广场"这个单词中的《q 》是以“g”发音还是以“y”发音?

以g发音"k"的发音在"s"后面被浊化成"g"

trafalgar square怎么读

/tra"fa:lga skwea/

"square"中的q发音是发k音还是g音??是给浊化了吗??

g

St, Marks Square 怎么读,主要是 St. 怎么读

street 街道,大道,路

times square怎么读

Times Square英 [tau026amz] 美 [tau026amz]n.泰晤士广场(位于美国纽约市曼哈顿区) But he has this fascination with the life in Times Square. 但他对时代广场的生活有一种迷恋。

"square"中的q发音是发k音还是g音??是给浊化了吗??

是发k音但是读g音。没错,是给浊化了

foursquare怎么读

foursquare 英["fu0254:"skweu0259] 美[u02c8fu0254ru02c8skwu025br, u02c8for-] adj. 正方形的,直爽的,坚定的 [例句]Foursquare willbe adding better communication tools to the apps.foursquare将在应用程序中添加更好的交流工具。

redsquare怎么读?

redsquare读作[red "skwɛː]。

square"广场"这个单词中的《q 》是以“g”发音还是以“y”发音?

发 g 因为就像 student 一样,你不可能把 t 本身的音发出来,要发 d 在英文里,一般在 s 后面的清辅音 需要浊化,所以读作 g

rectangle square读音

Dhkgchecafwbfjipthgehktgkoohhffwdgjohrgj

St, Marks Square 怎么读,主要是 St. 怎么读

St.MarksSquare的St.是Saint的缩写即SaintMarksSquare圣马克广场St.读如Saint[seynt]/seu026ant/谁因特希望帮到了你,满意敬请采纳,谢谢。

tian anmen square怎么读

Tian"anmen Square天安门广场square 基本词汇 英 [skweu0259(r)]     美 [skwer]    

Be there or be square里的square是什么意思?

这是一部电影的名字 不见不散

square是什么意思英语?square怎么读?

Square,(平方)cube,(立方)4th power,5th powerNth power. (n次方)如:3的8次方是“three to the 8th power”;10的31次方是“10 to the 31st power”补充:根squareroot、(平方根)cuberoot、(立方根)4throot、5throot...Nth-root.(n次方根)

square是什么意思

释义:1、adj. 正方形的; 四方形的; 成直角的; 方的; (用于表示长度的单位后,表示某物四个边等长) …见方的。2、n. 正方形; 四方形; 正方形物; (通常为方形的) 广场; 平方; 二次幂。 3、v. 使成正方形; 使成四方形; 使成平方; 使成二次幂; 挺直身子; 挺起胸膛。

Square怎么读是什么意思怎么造句

This is a square

square怎么读

square的读音为英[skweu0259(r)]美[skwer]。具体释义如下:square英[skweu0259(r)]美[skwer]n.平方;广场;正方形;方格adj.平方的;正方形的;成直角的;(尤指在生意上)公平的adv.四四方方地;成直角地;正直地;坚定地vt.使成正方形;使成直角;检测…的角度;调整,改正vi.一致;成方形扩展资料:square的常见短语搭配1、asquaremeal一顿丰盛的饭例句:Helooksasthoughhehasn'thadasquaremealforweeks.看他那样子,就好像几个星期没吃过一顿像样的饭了。2、backtosquareone(因无进展)回到起点,从头再来例句:Ifthissuggestionisn'taccepted,we'llbebacktosquareone.如果这个建议得不到采纳,我们就得从头再来了。3、fairandsquare光明正大;直截了当例句:Itoldhimfairandsquaretopackhisbags.我直截了当让他收拾好行李走人。Wewontheelectionfairandsquare.我们光明正大地竞选获胜。

square英语怎么读 单词square什么意思

1、square英[skweu0259(r)]美[skwer],n.(通常为方形的)广场; 平方; 正方形; 四方形; 正方形物; 二次幂;adj.方的; 正方形的; 四方形的; 成直角的; (用于表示长度的单位后,表示某物四个边等长)…见方的;vt.使成正方形; 使成四方形; 使成平方; 使成二次幂; 挺直身子; 挺起胸膛;adv.正对着地; 径直地。 2、[例句]The street opened out into a small square.街道豁然变宽,成为一个小广场。

square怎么读

square[英][skweu0259(r)][美][skwu025br]n.正方形; 广场; 平方; 方格; adj.成直角的; 平方的; (尤指在生意上)公平的; 正方形的; adv.四四方方地; 成直角地; 正直地; 坚定地; vt.使成正方形; 使成直角; 检测…的角度; 调整,改正; vi.一致; 成方形; 第三人称单数:squares过去分词:squared复数:squares现在进行时:squaring过去式:例句:1.Green square holds profound symbolic value. 绿色广场有深远的象征意义。article.yeeyan.org2.Each square meter is occupied. 每平方米都堆得满满的。article.yeeyan.org3.But the lion"s mighty pipes are square. 但狮子强有力的声带是方形的。article.yeeyan.org4.The rest are square or rectangular. 其余的都是正方形或长方形的。article.yeeyan.org5.Too square for her liking. 太方了,她不喜欢。

关于chi-square Test的读法,出处

chi[kai, ki:]n.希腊语字母表第22字母(X,х)(相当于英语的ch)square[ skwZE ]n.正方形, 广场, 平方, 直角尺adj.正方形的, 四方的, 直角的, 正直的, 公平的, 结清的, 平方的, 彻底的adv.成直角地, 正直地, 公平地, 坚定地v.使成方形, 弄平, 使直, 与...一致, 符合, 自乘, 结算test[ test ]n.测试, 试验, 检验v.测试, 试验, 检验chi-square test n.A test that uses the chi-square statistic to test the fit between a theoretical frequency distribution and a frequency distribution of observed data for which each observation may fall into one of several classes. X2检验用X2数据对一个二项总体与多项总体之间差异的显著性所作的检验,在这种检验中,每个观测值可以落入若干个组之一

英语Mandarin Square怎么翻译?

仅供参考:汉语广场

squat音标中的kw怎么读,在s后面是不是应

在s后面,k发/g/的音相同的还有 square

square后面的qu要浊化吗?qu/kw/要读成qu/gw/吗?

对,应该要浊化,在字母s后的清辅音要浊化,如squareschoolsky 但实际上,现在也有很多人读音故意不浊化,也没有什么错,你就是碰到浊化和不浊化的读音都能分辨出说的是哪个词汇就行了

trafalgar square怎么读的巧记

用拼音读法比较好记。

"Trafalgar Square"的音标,怎么读

英文原文:"Trafalgar Square"英式音标:" trafalgar [skweu0259] " 提交回答美式音标:" trafalgar [skwu025br] "

saint square怎么念

【saint square】【seint skwr】===========================================柳浪闻莺各位芝麻竭诚为您解答您的采纳是我们坚持百度的动力

square和share发音相同吗

square英 [skweu0259(r)] 美 [skwer] ,后面的are发eu0259(r)或er的音。share英 [u0283eu0259(r)] 美 [u0283er] ,后面的are了也是发eu0259(r)或er的音。所以,这两个单词整体的发音是不同的,但是are部分的发音是相同的。

英语单词circle和square怎么读

circle 英["sɜːk(ə)l] 美["sɝkl]square 英[skweə] 美[skwɛr]

Square怎么读是什么意思怎么造句

This is a square

英语单词circle和square怎么读

circle 英["sɜːk(ə)l] 美["sɝkl]square 英[skweə] 美[skwɛr]

circle 和 square 这两英语单词 怎么读

circle 色科尔square 斯怪厄

square怎么读

楼主您好,看一下下面的音标就会读了,下面还有这个单词的用法。square: [ skw0705 ] n. 正方形,街区,平方 a. 正方形的,正直的,公正的 v. 一致,符合,使...成方形 n. 广场 [ 副词squarely ] [ 形容词比较级squarer 最高级squarest ] [ 名词squareness ] [ 过去式squared 过去分词squared 现在分词squaring 第三人称单数squares ] 例句与用法1. The little girl drew a square on the paper. 小女孩在纸上画了一个正方形。 2. The teams are all square at one match each. 这些队在各自参加了一场比赛后不分胜负。 3. The road turned square to the left. 这条路成直角向左转去。 4. I must square my account with you. 我必须和你结清我的帐目。 5. Can I leave you to square up with the waiter? 我把跟服务员结帐的事交给你办行吗? 6. Let"s call it all square, shall we? 咱们谁也不欠谁的了,对吧? 7. Square the page off with your ruler. 用尺在这页纸上打上方格。

Squares怎么读?

si~ kuai~ er ~s~

square怎么念

square 英[skweu0259(r)]美[skwu025br]n. 正方形;广场;平方;方格adj. 成直角的;平方的;(尤指在生意上)公平的;正方形的adv. 四四方方地;成直角地;正直地;坚定地[例句]Green square holds profound symbolic value.绿色广场有深远的象征意义。

square怎么读 square的意思

1、square的读音:英[skweu0259(r)];美[skwer]。 2、square,英文单词,形容词、名词、副词、及物动词、不及物动词,作形容词时意为“平方的;正方形的;直角的;正直的”,作名词时意为“平方;广场;正方形”,作副词时意为“成直角地”,作及物动词时意为“使成方形;与…一致”,作不及物动词时意为“一致;成方形”。

square怎么读

square 英 [skweə] 美 [skwɛr] adj. 平方的;正方形的;直角的;正直的vt. 使成方形;与…一致vi. 一致;成方形n. 平方;广场;正方形adv. 成直角地

square怎么读?

acyuwjyndtnethybgjwtjtejey

square怎么读

广场,建议下载英语APP可以搜索翻译,微信翻译也可以的

square怎么读?

square [英][skweu0259(r)][美][skwu025br] n. 正方形;广场;平方;方格 adj. 成直角的;平方的;(尤指在生意上)公平的;正方形的 adv. 四四方方地;成直角地;正直地;坚定地 vt. 使成正方形;使成直角;检测…的角度;调整,改正 vi. 一致;成方形 复数: squares 第三人称单数: squares 过去式: squared 过去分词: squared 现在分词: squaring 双语例句 1. Young people often congregate in the main square in the evenings. 年轻人傍晚时经常聚集在大广场上. 2. the four corners of a square 正方形的四个角 3. The book had rounded, not square, corners. 这本书是圆角的,而不是方角的. 4. Crowds gathered in the vicinity of Trafalgar Square. 成群结队的人聚集在特拉法尔加广场周围. 5. Many of the town"s dropouts hang around the square. 这个镇的很多脱离社会传统的人在广场上闲荡.

highqualitycarbontidesense什么牌子

highqualitycarbontidesense是指临沂泰德信门业有限公司。根据查询现实泰德信门业有限公司英文名tidesense,临沂泰德信门业有限公司于2013年04月24日成立。法定代表人魏义理,公司经营范围包括:生产、制作、销售钢质安全门、楼宇门、室内门、不锈钢门、防火门、医疗用门、教育用门、钢木装甲门、智能安全门、楼宇门电子系统、KTV门;五金锁具、装饰材料销售;室内外装饰等。

round face,squarish face,chubby cheeks,double chin,pointed chin

依次是 圆脸,方脸,胖脸蛋儿,双下巴,尖下巴.

nether quartz有什么用

  您好,我来为您解答:  nether quartz,可以合成石英块。  如果我的回答没能帮助您,请继续追问。

master equalization怎么调

可选均化池选配均化池

经济学问题.关于optimal quantity的.求大牛帮忙解释下原因.

生产草坪机数量和边际收益边际成本的关系 cost of producing lawn-mowing就是假设中的生产草坪机的成本 经济学中最基本的边际成本、边际收益的最优量就是optimal quantity

经济学问题。。关于optimal quantity的。求大牛帮忙解释下原因。

生产草坪机数量和边际收益边际成本的关系cost of producing lawn-mowing就是假设中的生产草坪机的成本经济学中最基本的边际成本、边际收益的最优量就是optimal quantity

什么是qualifying dimension和determing dimension。两者区分

dimension 长度,宽度,厚度,高度,面积,容积,大小.例如:Time is sometimes called the fourth dimension.时间有时被称为第四度空间.unit 个体,单元,小组,单位.例如:This lesson is divided into four units.这一课分为四个单元.

soil dynamics and earthquake engineering是什么期刊

国外著名土木工程相关期刊列表(SCI/EI)国际重要学术期刊推荐表序号 国际重要学术期刊名称(SCI、EI检索源)1 Advances in Structural Engineering2 ACI Journal of Materials3 ACI Structural Journal4 Automation in Construction5 Buildings and Structures6 Canadian Geotechnical Journal ISSN: 0008-36747 Canadian Journal of Civil Engineering8 Computational Mechanics9 Computers and Structures10 Computers and Geotechnics ISSN: 0266-352X11 Cement and Concrete Research12 Computer Methods in Applied Mechanics and Engineering13 Communications in Numerical Methods in Engineering14 Earthquake Engineering and Structural Dynamics15 Earthquake Spectrum16 Engineering Geology17 Engineering Analysis with Boundary Elements18 Engineering Structures19 Geotechnique ISSN:0016-850520 Ground Engineering21 Geotextiles and Geomembranes22 International Journal of Impact Engineering ISSN: 0734-743X23 International Journal for Numerical and Analytical Methods in Geomechanics ISSN: 0363-906124 International Journal for Numerical Methods in Engineering25 International Journal of Rock Mechanics and Mining Sciences ISSN: 1365-160926 International Journal of Solids and Structures27 International Journal of Steel Structures28 International Journal of Space Structures29 International Journal of the Geotechnical Structures30 Journal of Applied Mechanics, ASME31 Journal of Bridge Engineering , ASCE32 Journal of Computing in Civil Engineering, ASCE33 Journal of Composites for Engineering, ASCE34 Journal of Constructional Steel Research35 Journal of Engineering Mechanics, ASCE36 Journal of Geodynamics ISSN: 0264-370737 Journal of Geotechnical and Geoenvironmental Engineering, ASCE ISSN: 1019-24138 Journal of Sound and Vibration39 Journal of Steel & Composite Structures40 Journal of Structural Engineering, ASCE41 Journal of Wind Engineering & Industrial Aerodynamics Wind and Structures42 Journal of Construction and Management43 Preceding of Civil Engineering Bailing and Bridge Structures44 Reliability Engineering & System Safety ISSN: 0951-832045 Rock Mechanics and Rock Engineering ISSN: 0723-263246 Shock and Vibration ISSN: 1070-962247 Soils and Foundations ISSN: 0038-080648 Soil Dynamics and Earthquake Engineering49 Structural Engineers50 Structural Engineering and Mechanics51 The Structural Design of Tall Buildings52 Thin-walled Structures53 The Magazine of Concrete Research54 Tunnelling and Underground Space Technology55 Wind and Structures-An International Journal56 Finite Elements in Analysis and Design注:1.以上是否被SCI、EI检索期刊为准。  2.除以上学术期刊外,学科认为是国际重要学术期刊,且被SCI、EI检索,专家组可认定为国际重要学术期刊

make sb seem to have a particular quality什么意思?

make sb seem to have a particular quality使某人有一种特殊的品质

java中deepEquals()和equals()有什么区别?deepEquals()怎么使用啊?

在deepEquals()在 java.util.Arraysjdk 帮助文档里是这样写的:deepEquals(Object[] a1, Object[] a2) 如果两个指定数组彼此是深层相等 的,则返回 true。 比较的什么呢? 比较的是 数组a1 和 数组a2 中的元素是否深层相等 也就是 a1[1].equels(a2[1]), a1[2].equels(a2[2]), a1[3].equels(a2[3])........给你找了一个例子:import java.util.*;public class deepEqualsArray { public static void main(String[] args) { //creating an object array Object o[]={"Rose","India","Net","Limited","Rohini"}; //Object o1[]={"Rose","India","Net","Limited","Rohini"}; Object o1[]={"Rohini","Limited","Net","India","Rose"}; boolean b=Arrays.deepEquals(o, o1); System.out.println("Array are equal:-" +b); }} 另外我查了下jdk源码 deepEquals(Object[] a1, Object[] a2) 你可以看着理解一下 public static boolean deepEquals(Object[] a1, Object[] a2) { if (a1 == a2) return true; if (a1 == null || a2==null) return false; int length = a1.length; if (a2.length != length) return false; for (int i = 0; i < length; i++) { Object e1 = a1[i]; Object e2 = a2[i]; if (e1 == e2) continue; if (e1 == null) return false; // Figure out whether the two elements are equal boolean eq; if (e1 instanceof Object[] && e2 instanceof Object[]) eq = deepEquals ((Object[]) e1, (Object[]) e2); else if (e1 instanceof byte[] && e2 instanceof byte[]) eq = equals((byte[]) e1, (byte[]) e2); else if (e1 instanceof short[] && e2 instanceof short[]) eq = equals((short[]) e1, (short[]) e2); else if (e1 instanceof int[] && e2 instanceof int[]) eq = equals((int[]) e1, (int[]) e2); else if (e1 instanceof long[] && e2 instanceof long[]) eq = equals((long[]) e1, (long[]) e2); else if (e1 instanceof char[] && e2 instanceof char[]) eq = equals((char[]) e1, (char[]) e2); else if (e1 instanceof float[] && e2 instanceof float[]) eq = equals((float[]) e1, (float[]) e2); else if (e1 instanceof double[] && e2 instanceof double[]) eq = equals((double[]) e1, (double[]) e2); else if (e1 instanceof boolean[] && e2 instanceof boolean[]) eq = equals((boolean[]) e1, (boolean[]) e2); else eq = e1.equals(e2); if (!eq) return false; } return true; }对于equals 我就不多说了 就是比较的在堆内存里存放的值, “==”是比较栈内存中的地址

adequate appropriate区别?

两者都有适当的意思,但adequate更含有充分的适当的意思,偏向于饱和的这方面,而appropriate在形容词方面仅仅只是代表适当,它的动词意思有占有,拔出。

Quartus II编译时出现错误

时钟CLK0输入给pll1了,就不要再输出给其他模块了。其他模块的时钟用pll1的c0代替。

Does Industrial Revolution equal to The Age of Machines?

Yes Industrial Revolution equal to The Age of Machines Yes you can say the same The Industrial Revolution was a period in the late 18th andearly 19th centuries when major changes in agriculture manufacturing and trportation had a profound effect on socioeconomic and cultural conditions in Britain. The changes subsequently spread throughout Europe and North America and eventually the world a process that continues as industrialisation. The onset of the Industrial Revolution marked a major turning point in human social history parable to the invention of farming or the rise of the first city-states;almost every ect of daily life and human society was eventuallyinfluenced in some way. In the later part of the 1700s the manuallabour-based economy of the Kingdom of Great Britain began to be replaced by one dominated by industry and the manufacture of machinery. It started with the mechanisation of the textileindustries the development of iron-making techniques and the increaseduse of refined coal. Trade expion was enabled by the introduction ofc *** s improved roads and railways. The introduction of steam power (fuelled primarily by coal) and powered machinery (mainly in textile manufacturing) underpinned the dramatic increases in production capacity.The development of all-metal machine toolsin the first o decades of the 19th century facilitated themanufacture of more production machines for manufacturing in otherindustries. The effects spread throughout Western Europe and North America during the 19th century eventually affecting most of the world. The impact of this change on society was enormous. The First Industrial Revolution merged into the Second Industrial Revolution around 1850 when technological and economic progress gained momentum with the development of steam-powered ships railways and later in the nieenth century with the internal bustion engine and electrical power generation. I also have a problem I have a project now and Idon"t know what to do can you give idea?

square为什么不是两个音节

square的音标是英 [skwe_(r)]、美 [skwer],只有一个音节。SQUARE,英文单词,形容词、名词、副词、及物动词、不及物动词,作形容词时意为“平方的;正方形的;直角的;正直的”,作名词时意为“平方;广场;正方形”,作副词时意为“成直角地”,作及物动词时意为“使成方形;与?一致”,作不及物动词时意为“一致;成方形”。音节(Syllable)是语言中单个元音音素和辅音音素组合发音的最小语音单位,单个元音音素也可自成音节。汉语的音节是由声母和韵母相拼组成的语音单位,单个韵母也可自成音节。对英语西语俄语等非声调语言来说,其发音主体是音节。对汉语、泰语等声调语言来说,其语音除了音节还有声调,音节加上声调就是读音。汉语普通话的音节数量约为400个,读音约1300个。音节不同于音乐小节,许多人有混淆认识,应该加以区分。音节是语音的基本单位,更是表达意义的语音单位,是作为语言最小音义结合体的语素的载体单位。据此,有些人类语言的音节主体同时也是语素,如单音节语;有些语言的语素(主要是词根语素)主体,由2或3个音节组成,如双音节语或三音节语;有些语言的语素主体和音节主体之间没有强势的对应关系,如X音节语,但其长度也在1-3个音节之间,有着单位长度的限制。

equal same identical proper的区别 请详细分点列出这四个词的用法区别···

我是英语专业的,虽然不是很详尽,但希望我总结出来的可以帮到你. equal:强调两者能力、地位等方面平等或者可以相匹敌.常用搭配:be equal to same:表示相同.固定搭配:be the same as...和...相同的 identical强调的是两者的完全一致.be identical with/to... proper是“正当的,适合的”意思,不会和前3者混淆啊

Unit Groundwater Contamination and Water Quality Standards

During recent years much of the emphasis in groundw ater investigations in industrialized countries has shifted from problems of groundw ater supply to considerations of groundw ater quality. As a result of our consumptive w ay of life,the groundw ater environment is being assaulted w ith an ever-increasing number of soluble chemicals. Current data indicate that in the United States there are at least 17 million w aste disposal facilities emplacing more than 6. 5 billion cubic meters of liquid into the ground each year. As time goes on,the vast subsurface reservoir of fresh w ater,w hich a few decades ago w as relatively unblemished by man"s activities,is gradually becoming degraded.The problem of w ater quality degradation of rivers and lakes has been evident for a long time. In general,solutions to this problem have been found in the implementation of effective legislation for discontinuing contaminant emissions. Already in some parts of the w orld, effective emission abatement measures have led to great improvements in surface-w ater quality. Unfortunately,problems of groundw ater quality degradation are in many w ays more difficult to overcome. Because of the heterogeneities inherent in subsurface systems,zones of degraded groundw ater can be very difficult to detect. The U. S. Environmental Protection Agency in 1977 reported that almost every know n instance of aquifer contamination w as discovered only after a w ater-supply w ell w as affected. Often by the time subsurface pollution is conclusively identified,it is too late to apply remedial measures that w ould be of much benefit. From a w ater quality view point,degradation of groundw ater often requires long periods of time before the true extent of the problem is readily detectable. Long periods of groundw ater flow are often required for pollutants to be flushed from contaminated aquifers. Groundw ater pollution often results in aquifers or parts of aquifers being damaged beyond repair.Whereas the problem of achieving acceptable quality of surface w aters focuses mainly on decreasing the know n emissions of pollutants to these systems,the problem facing scientists and engineers involved in the protection of groundw ater resources is to identify the areas and mechanisms by w hich pollutants can enter groundw ater flow systems and to develop reliable predictions of the transport of contaminants w ithin the flow systems. This is necessary as a basis for minimizing the impact of existing or proposed industrial,agricultural,or municipal activities on groundw ater quality.The purpose of this section is to provide some insight into the physical and chemical factors that influence the subsurface migration of dissolved contaminants. To this end the behavior of nonreactive solutes and of solutes that undergo reactions during subsurface migration w ill be considered. Follow ing this,more specific contamination problems related to activities such as agriculture,mining, nuclear pow er development, and disposal of refuse, sew age, and industrial w astes w ill be briefly review ed.Throughout this section all solutes introduced into the hydrologic environment as a result of man"s activities are referred to as contaminants,regardless of whether or not the concentrations reach levels that cause significant degradation of water quality. The term pollution is reserved for situations where contaminant concentrations attain levels that are considered to be objectionable.The emphasis in this section is on the occurrence and processes that control the migration of dissolved contaminants in groundw ater. Groundw ater can also be contaminated by oily substances that exist in a liquid state in contact w ith w ater in a manner that does not lead to mixing of the oils in a dissolved form. The oily liquid is said to be immiscible in the w ater. The physical processes that control the movement of immiscible fluids in subsurface systems w as described by Bear in 1972 and w as introduced in a later section.Before proceeding w ith discussions of the principles of contaminant behavior in groundw ater flow systems and of sources of groundw ater contamination, w e w ill briefly examine some of the more important w ater quality standards. These standards serve as a basis for appraisal of the results of chemical analyses of w ater in terms of suitability of the w ater for various intended uses. The most important of these standards are those established for drinking w ater ( Table 13. 1) . The recommended limits for concentrations of inorganic constituents in drinking w ater have existed for many years. Limits for organic constituents such as pesticide residues are a recent addition. There is considerable controversy w ith regard to the specific organic constituents that should be included in drinking w ater standards and the concentration limits that should be established for them.Table 13. 1 Drinking water standardscontinuedSources: U. S. Environmental Protection Agency, 1975 and Word Health Organization ( WHO ) , European Standards,1970.* Recommended concentration limits for these constituents are mainly to provide acceptable esthetic and taste characteristics.ue551 Limit for NO-3expressed as N is 10 mg / L according to U. S. and Canadian standards; according to WHO European standards,it is 11. 3 mg / L as N and 50 mg / L as NO-3.ue550 Maximum permissible concentration are set according to health criteria.§ Limit depends on average air temperature of the region; fluoride is toxic at about 5 - 10 mg / L if water is consumed over a long period of time.** 1pCi = 3. 7 ×10- 2Bq.In Table 13. 1 the major constituents for w hich recommended permissible limits are listed are total dissolved solids ( TDS) ,sulfate,and chloride. Consumption by humans of w aters w ith concentrations somew hat above these limits is generally not harmful. In many regions groundw ater used for drinking-w ater supply exceeds the limits of one or more of these parameters. Several hundred milligrams per liter of chloride must be present in order for saltiness to be detected by taste.Hardness of w ater is defined as its content of metallic ions w hich react w ith sodium soaps to produce solid soaps or scummy residue and w hich react w ith negative ions,w hen the w ater is evaporated in boilers,to produce solid boiler scale. Hardness is normally expressed as the total concentration of Ca2 +and Mg2 +as milligrams per liter equivalent CaCO3. It can be determined by substituting the concentration of Ca2 +and Mg2 +,expressed in milligrams per liter,in the expressiontotal hardness = 2. 5 [Ca2 +]+ 4. 1[Mg2 +] Each concentration is multiplied by the ratio of the formula w eight of CaCO3to the atomic w eight of the ion; hence the factors 2. 5 and 4. 1 are included in the hardness relation. Water w ith hardness values greater than 150 mg / L is designated as being very hard. Soft w ater has values less than 60 mg / L. Water softening is common practice in many communities w here the w ater supply has a hardness greater than about 80 - 100 mg / L. Water used for boiler feed w ill cause excessive scale formation ( carbonate-mineral precipitation) if the hardness is above about 60 - 80 mg / L.Of the recommended limits specified for minor and trace inorganic constituents in drinking w ater,many have been established for reasons other than direct hazard to human health. For example iron and manganese are both essential to the human body. Their intake through drinking w ater is normally an insignificant part of the body requirement. The recommended limits placed on these metals in the standards are for the purpose of avoiding,in household w ater use,problems associated w ith precipitates and stains that form because oxides of these metals are relatively insoluble. The recommended limit for zinc is set at 5 mg / L to avoid taste produced by zinc at higher concentrations. Concentrations as high as 40 mg / L can be tolerated w ith no apparent deteriment to general health. Zinc concentrations as low as 0. 02 mg / L are, how ever,toxic to fish. Zinc contamination can be regarded as severe pollution in ecological systems w here fish are of primary interest but may be only of minor significance if human consumption is the primary use of the w ater.The most common identifiable contaminant in groundwater is nitrate ( NO-3) . The recommended limit for nitrate in drinking water is 45 mg / L expressed as NO-3or 10 mg / L expressed as N. In Europe the limit recommended by the World Health Organization is 50 mg / L as NO-3and 11. 3 mg / L as N. Excessive concentrations of NO-3have potential to harm infant human beings and livestock if consumed on a regular basis. Adults can tolerate much higher concentrations. The extent to which NO-3in water is viewed as a serious pollutant therefore depends on the water use.The constituents for w hich maximum permissible concentration limits have been set in drinking w ater standards ( Table 13. 1 ) are all considered to have significant potential for harm to human health at concentrations above the specified limits. The specified limits are not to be exceeded in public w ater supplies. If the limits for one or more of the constituents are exceeded, the w ater is considered to be unfit for human consumption. The limits indicated in Table 13. 1 are representative of the current standards in the United States and Canada. The limits are continually being appraised and modifications occur from time to time. As more is learned about the role of trace constituents in human health,the list of constituents for w hich maximum permissible limits exist may expand,particularly in the case of organic substances.In many regions the most important uses of groundw ater are for agriculture. In these situations it is appropriate to appraise the quality of groundw ater relative to criteria or guidelines established for livestock or irrigation. Recommended concentration limits for these uses are listed in Table 13. 2. The list of constituents and the concentration limits are not as stringent as for drinking w ater. These w ater quality criteria do serve to indicate, how ever,that concentration increases in a variety of constituents due to man"s activities can cause serious degradation of groundw ater quality even if the w ater is not used for human consumption.Table 13. 2 Recommended concentration limits for water used for livestock and irrigation crop production( Source: Freeze et al. ,1979)水文地质专业英语

美式橄榄球的全队灵魂传球手为什么叫四分卫(Quarterback)?

四分卫是大脑,有时也会亲自担任达阵得分的使命

quarterback什么意思

quarterbackn. 橄榄球的四分卫vt. (以四分卫)指挥进攻;领导;操纵vi. (橄榄球中)担任四分卫[网络短语]quarterback 四分卫,本意是美式足球的四分卫,疯狂美式足球Pro Quarterback 专业四分卫,橄榄球Armchair quarterback 场外四分卫希望帮到你 望采纳 谢谢 加油~

quality indicator是什么意思

quality indicator[英][u02c8kwu0254liti u02c8u026andu026au02cckeu026atu0259][美][u02c8kwɑlu026ati u02c8u026andu026au02ccketu025a]质量指标; 例句:1.The purpose of this study is to investigate the relation of participating taiwanquality indicator project and hospital performance for the private non-for-profithospitals in taiwan. 本研究即以台湾地区财团法人医院为研究对象,探讨参与台湾医疗品质指标计画对医院绩效的影响。 2.At the present, quality of life instruments have been widely used in fields ofsociety, and become the indispensably important indicator and evaluationtool. 生命质量目前已广泛应用于社会各领域,成为不可或缺的重要指标和评定工具。

LE WAVE QUARTZ是什么牌子的手表,有人知道吗??谢了!!!

辨别石英表和机械表简单的办法:一、看字样,automatic是机械表,quartz是石英表;二、机械表有镂空或者背面可以看到内部的;三、看厚度,机械表普遍比石英表厚;四、看秒针运动,跳动是石英,扫过是机械。

be equal to 与be equivalent to有什么区别?

be equal to 等于,同样 be equivalent to 当量,相当于 例句: 2 plus 5 is equal to 7. Some countries do not have a president.Their prime minister is roughly equivalent to our president. If the product is defective the store will give you another item which is equivalent to it,or refund you an amount equal to the purchase price.

equivalent和equal 有什么区别

意义相同,但equivalent用于较严肃正式的时候

英语问题:equal和equivalent在意义和用法上面有什么区别?谢谢

equal指在大小、质量、数量、形状、价值等方面相当或相等,常用词组be equal to(等于,和……相等),而equivalent指在意义、重要性等抽象的方面相当或相等。另外,equal可作名词用,表示“对手”,“匹敌者”。equal pay for equal work:同工同酬。 希望能帮到你。

equivalent和equal 有什么区别

equivalent相等的和equal等于

equal=equivalent?

equal is a verb, equivalent is an adjective.

equivalent和equal 有什么区别

equal,equivalent的区别: equal指在大小、质量、数量、形状、价值等方面相当或相等,常用词组be equal to(等于,和……相等),而equivalent指在意义、重要性等抽象的方面相当或相等。另外,equal可作名词用,表示“对手”,“匹敌者”。equal pay for equal work:同工同酬。

corresponding quantity是什么意思

相应的数量

求推荐《蚁人与黄蜂女:量子狂潮》(Ant-ManandtheWasp:Quantumania)

《蚁人与黄蜂女:量子狂潮》简介如下:

adequate和enough什么区别

还有另外的一个形容词sufficent也有相似含义enough sufficient adequate意思都含“充分的”、“足够的”。1.enough 系常用词, 常可与 sufficient 互换, 它除表示“足以满足需要的”外, 还含有“数量很多使人感到心满意足的”的意思, 如:We have enough money to spend.我们有足够的钱花。2.sufficient 用于正式文体中, 指“分量或数量足以满足需要的”, 如:The food is sufficient for a week.食物足够一周用。3.adequate 指“足够符合特定(有时可指最低)的资格、分量、才能等”着重“符合一个客观要求或标准的”, 如:To be healthy one must have an adequate diet.一个人想要健康, 必须有足够的规定饮食。注意:enough 还可以做副词,来修饰形容词,但必须放在形容词的后面例: She is not old enough to go to school 她没有达到上学的年龄.

plentiful,sufficient,adequate后面加可数还是不可数(时间太久有点忘了

应该是可数名词,sufficient是可可数也可不可数

请问sufficient,ample, enough, abundant, adequate, plenty的具体区别?

正常人 不太会用 ample. ample abundant plenty----超出的多enough adequate sufficient --足够的多。

澳洲法律术语 adequate和sufficient区别

adequate是要非常合乎需要的.sufficient是充足的。其实两者的英文解释是差不多的。都是enough for a particular porpose.
 首页 上一页  12 13 14 15 16 17 18 19 20 21 22  下一页  尾页