采矿中,单巷、双巷、单巷掘进、双巷掘进,用英语怎么翻译?

1) (上半月产量+下半月产量)-计划产量=多的产量
(16.8+16.8-0.2)-25.4
=33.4-25.4
=8吨
1) 3600÷[(3600÷150÷18+1.5)×150]
=3600÷(11/6×150)
=3600÷275
=13.1天

16.72÷5.5=3.04吨
72.96÷3.04=24小时

D

This design topic is the design of Datong Coal Mining in Tongjialiang Mine 12,1#,design drawings of a total of 5,manual chapter ten.According to the needs and characteristics of mining engineering,
The key design for the fourth,five or six chapters,such as the bottom,well
The transportation and lifting equipment only do general selection calculation.
The mine is located in Datong mining area,is apart from the Datong 20Km.Ida Datong Road and Datong railway,transportation convenience.
Honi Da coal seam is shallow coal seam angle,Ida general 2 6 °,belonging to the near level coal seam,the averagecoal thickness of 3.4m.Ida is low gas,coal dust explosion,no coal spontaneous combustion,the temperature is notnormal,structure and hydrogeological conditions ofmedium,coal mining technology conditions are relativelysimple.
Honi Da is divided into 4 zones,the vertical shaft development method,mining technology,mining the back ofa fully mechanized coal mining method,using the "three eight system" operating system.Equipment working face adouble drum shearer,sliding support,can be bent scraper conveyor,crusher,conveyor and so.Gob roof control by all collapse method.
The mine design annual output of 900000 tons,using a set of fully mechanized mining to meet productionrequirements.Mine transportation roadway with tape transport as the main transport,the car is used as an auxiliary transport,mine ventilation with central type.
Keywords:central ventilation; once mining full height; fully caving method; inclined long arm type coal mining method.

实际三天完成30%,也就是9000*30%=2700吨,那么实际每天就是2700/3=900吨,一共九千吨,那实际则需要9000/900=10天,计划是十八天,那实际就提前了18-10=8天,故答案是八天!上课老是睡觉,工作二年了都!

生态学家：冰雪融化破坏当地环境,北极熊失去栖息地.
航海家：冰雪融化使得北冰洋成为海上交通新通道.
采矿业主：冰雪融化便于矿产资源的开发.

C

其实炼水银不难,早在秦代就能大量生产水银了.
通常开采冶炼用的汞矿多为辰砂,开采简单,炼制容易.
1、开采辰砂.
在矿点挖取辰砂矿,挑选纯净的辰砂晶体,用磁铁吸取铁类物质,再用水淘洗干净泥沙,研碎备用.
2、隔火煅烧.
将辰砂放入特制容器中,形状如锅,上盖一倒漏斗做锅盖,接一个弓型铁管,铁管另一端下放一个碗.隔火煅烧辰砂,水银就会析出蒸发,在铁管冷凝成液体,汇集到碗里.
另外,因为汞的活泼性不强,自然中也存在自然汞,也就是天然水银矿.在岩层中有大大小小充满水银的水银坑.直接抽出蒸馏即可,或将含天然水银的岩石按第二步煅烧提炼,也能得到水银.
但总归来说,用丹砂生产水银产量最稳定,也能持续生产.所以最普遍.

450÷（1+4/5）
=450÷（5/5+4/5）
=450÷9/5
=250吨
450-250=200吨
今天采矿石200吨 ,昨天采矿石250吨

你好!
在这里我把decline所有的意思都给到你吧,你再去配,总会有一个意思是你所想的
n.下降,衰退,斜面
vi.下降,衰落,谢绝
vt.谢绝,婉拒
如：in decline 下降,在衰退中
production delcline （在油气,矿业,经济行业中）产量递减
decline trend 递减趋势
谢谢,希望能够帮到你!

原计划为450÷（1-56%+4/25）=450÷0.6=750吨
超过月计划产量750×4/25=120吨

通过这篇课文,我联想到了我的家乡,它原来有一条小河,以前,小河的水,清澈透底,波光明灭,我们经常去河边嬉戏,玩耍.可是,前几年,我去到那里,那里的河水已经浑浊不清,还有一股臭味.为什么会这样呢?因为人们在水里随意乱丢垃圾,而且附近还有化学工厂,才会使我们的家园遭到了破坏.所以我再这里提倡大家：“保护地球资源,共营生命绿色,让我们更好的保护地球,让大家生活在更好的城市,更好的环境.”

72÷12÷2/5=15吨
答平均每人每小时采煤15吨

（1）开采矿物需要火药,这样就增加了空气中的细小颗粒,损害人们的健康.
（2）破坏地质使土地水土流失加重
（3）如果附近有水源,可能会污染水源

地球上可能引起滑坡灾害的原因有：地震、冰雪融化、采矿修路等．根据题意．
故选：B．

20世纪50年代以来主要采用井下大爆破崩落溶浸采矿法开采即大爆破作业崩落矿体堆放在采场内,原地封闭溶浸,注入热水浸泡溶解矿石中的硫酸钠形成硫酸钠溶液,当其浓度达到250g／L后,汇集到硝水仓,再由多级泵抽到地面制硝系统经精制、蒸发、干燥,生产出工业产品白色无水硫酸钠出售,其含量可达99.99％.为了提高矿产资源利用率,降低生产成本,加速开发,近年又试验了在地表直接向矿体钻孔数个,使用高压水压入矿体而从中间钻孔抽取溶液的“群井致裂压力控制水溶开采钙芒硝矿”的采矿方法.

1000/(45%+75%-1)=5000t
5000+1000=6000吨
希望能够帮上你!

很高兴为你翻译、解释.您提出的采矿用英语怎么说?
只有专业说法：mining（汉字注音：埋岭）最准确.（汉语含义：n.采矿,矿业）可做动名词.
英语的其他表达方式均不能准确地表达“采矿”的动名词.
例如：mine pron.我的；n.矿,矿山,矿井,源泉,宝库,地雷,水雷；vt.挖掘,开采,在...布雷,破坏
vi.开矿,埋设地雷等,只适合做“开矿”的动词

地质是分析岩层矿层赋存情况,测量是给施工的井巷定位,而采矿是最终的目的,是通过井巷工程进入工作面而最后将有价值的矿体（煤体）给开采出来.地质测量是采矿的眼睛,地质是前瞻性的预测预报和分析,测量是准确定位核定标高方位和坡度,而采矿则是依据地质测量数据和资料进行井巷工程布局,然后准备好健全的生产系统,采出矿体.地质测量为采矿服务.

解题思路：巴西位于热带，其热带经济作物咖啡、甘蔗、柑橘的产量居世界第一

巴西从气候条件看，其优越性是气候温暖湿润，根据因地制宜的原则，巴西人在新开发的土地上，应该种植的主要作物是橡胶、甘蔗等经济作物，甘蔗是制作酒精的原料，巴西能源资源不足，用酒精作燃料，极大地推动了汽车行业的发展．
故选：C．

点评：
本题考点： 巴西的主要农产品和经济．

考点点评： 考查巴西的相关知识，熟记课本知识点解答即可．

第一次反应掉CaCO3 10-6.5=3.5g
第二次反应掉CaCO3 6.5-3.0=3.5g
第三次反应掉CaCO3 3.0-0.6=2.4g
从第二次和第三次可知,第三次加入20g的稀盐酸过量,
所以m=0.6g CaCO3的质量为:3.5+3.5+2.4=9.4g
这种石灰石样品的纯度是:9.4/10=94%
m的值是=0.6g
3. m(CaCO3)=100*94%=94g
CaCO3 +2HCl ====CaCl2 + CO2 + H2O
100 44
94 X=41.36g
100g这样的石灰石与足量稀盐酸反应,可以制得CO241.36g

A tentative mining design in YongCheng coal mine area of HNCC group
abstract:
the main coal seam in this mine shaft is two layers,and has an acreage of 24.5 square kilometers,the speciation of coal seam has been found stable.it is supposed to produce 900 thousands tones annually.
coal seam inclination averages10,htickness 2.95 m and capacity 1.47 tones per cubic meter.
it is a gaseous mine with low amount of gas discharge and water inflow.less likely to self-ignate.this shaft is designed to adopt direct deepening with double levels in vertical shaft.compehensive mechanization extraction method will be empolyed ,along with inclined longwell mining method.meanwhile,goaf will be dealt with total caving way.
work system in mine area is arranged 8 hours everyday,two groups are responsible for output while one group for examine and service.the coal mine is operated in whole mechanization and advanced facilities as well as thechnology are equipped,reaching the criterion of one efficient shaft for one mine district ,in order to gain high rewards economicaly and socially.
key words:vertical shaft with two levels; comprehensive mechanization coal mining; inclination longwell; full-seam mining; high yield and efficiency.

两组一天总采矿10*6.25+15*7.5＝175,除以10+15＝25人,175/25＝7,平均每人每天采7吨

该情况下岩石的单耗：q=Q/v 其中 Q=14 v=1/3*2*3.14*2*2=8.37（就是地面半径为2m高也是2m的圆锥体体积）q=1.67
n=1.2时v‘=1/3*2*3.14*（2*1.2）*（2*1.2）=12.05 此时所用药量为：Q’=v‘*q=1.67*12.05=20.12
n=0.75时v‘’=1/3*2*3.14*（2*0.75）*（2*0.75）=4.71此时所用药量为：Q’‘=v‘’*q=1.67*4.71=7.87