sign和signal的区别究竟是什么啊?

英语编句子football coach signal players field
帮忙用这几个词造个句子 谢了啊

When changing lanes, adriver should use his turning signal to let other drivers know ______

[ ]

A. he is entering which lane B. which lane he is entering C. is he entering which lane D. which lane is he entering

signal words 是否就是关联词
英语阅读中需要注意signal words, 这是否就是汉语所说的那些关联词呢?

用wait、signal操作实现爸爸、儿子、女儿3个并发进程的同步
桌上有一个空盘子,只允许放一个水果.爸爸可以向盘中放苹果,也可以向盘中放桔子,儿子专等吃盘中的桔子,女儿专等吃盘中的苹果.规定当盘空时,一次只能放一只水果.

In signal processing,there are many instances in which an input signal to a system contains extra
请帮忙翻译下上面那段英文..-,-

英语有个句子不是很懂,请指教
The best signal depends not only on its brightness but also on how well it contrasts with the background against which it must be seen.
这个句子讲的是关于 动物的光信号
我的问题是against which it must be seen.中的against 后面引导的部分,是与前面哪个部分相对应?
how well it contrasts with the background against which it must be seen.
p.s.我主要是against 在这里的句子的逻辑关系不清楚了,请指教

how does the power of the radio signal from a TV transmitter vary with distance?
不是翻译.需要用英文术语（电子）回答这个问题.

1、For example,the signal—————— from a satellite,—————— in far outer space,is very weak
A.received,located B.receive,locate
C.receiving,locating D.to receive,to locate
2.There is a inherent advantage for —————— noisy environments by——————
digital transmission
A.overcoming,choose B.overcome,choosing
C.overcome,choose D.overcoming,choosing
3.An asynchronous serial data link is said—————— character oriented,as information is transmitted in the form of groups of bits —————— characters
A.be,calling B.to being,to call
C.been,call D.to be ,called
4.If a voice circuit has a heavy loss or is nosiy,the speakers compensate automatically by increasing
A.the redundancy of their voice B.the intensity of their voice——————
C.the delay of the speech D.the irregularities of the speech
5.—————— is a networked hypertext protocol and user interface
A.Asynchronous serial interface B.E-mail
C.Internet D.World wind web
6.The researchers —————— produced the first clad glass optical fibers were not thinking of —————— them for communications
A.which,use B.that,used
C.who,using D.one,to use
7.More importantly,however,signal capacity —————— within a synchronous transport frame —————— network transportation capabilities
A.set aside,support B.is set aside,to support
C,is aside,supported D.to set,be supported
8.However,the same optical infrastructure is expected —————— this variety of services
A.to support B.supporting
C.supported D.to be support
9.The operator of a local telephone switchboard had an option —————— an optical or acoustical signal for the —————— person over a wired network
A.transmit,search B.to transmit,searched
C.transmitting,searching D.to transmit,to search
10.One of many reasons for ———— a cellular mobile telephone system and ————
It in many cities is the conventional mobile telephone system
A.develop,deploy B.to develop,to deploy
C.developing,deploying D.developed,deployed

请帮我看看啥意思（一）any signal given three times is a call for help.
如题

fluent提示错误
FLUENT received fatal signal (ACCESS_VIOLATION)
1.Note exact events leading to error.
2.Save case/data under new name.
3.Exit program and restart to continue.
4.Report error to your distributor.
Error Object:()

数字电路的问题
请问在数字电路中,信号(signal)是什么意思?是指输入输出的变量值吗?
信号为什么都用0和1表示?
为什么说一个电路中所有的信号都可以在同时发生变化?
什么叫做多比特(bit)信号?

5.__________,the train started.A .The signal given B .After the signal w

英语翻译
缺乏眼神交流可能表示紧张（lack of;signal）林先生的演讲持续了两个小时（last）有时说话方式是成功交际的关键（the key to）经理叫他的秘书提醒他下周参加一个重要会议（remind）为了避免困惑,你最好向她清楚地解释这个问题（avoid;confusion）就是书配套的练习册上的题目,

翻译 This is a signal that he or she wants to know something more about
This is a signal that he or she wants to know something more about you than what you do for a living or where you are from.

求英语专家sign,signal,symbol,mark有何区别?
详细的点吧!谢谢!

一定要用副词修饰形容词吗?
extremely strong signal 非常清晰的信号extremely 修饰strong
high quality fresh milk 高品质鲜牛奶
不好意思,正好在看副词,偶尔看到牛奶包装上的英语,所以想问下,为什么后面的QUALITY是名词而不是副词?

求问一道题 信号处理导论
A 5kHz sinusoidal signal is sampled at 80kHz and 64 samples are collected and used to compute the 64-point DFT of this signal. At what DFT indices, k=0,1,…,63 would you expect to see any peaks in the DFT?
谢谢

Jimmy was so nervous that not a signal word _____down in the dictation.
A.he wrote B.he was written C.did he write D,was he written

英语翻译
Dawes/Redman criteria MET by FHR1 at 30 minutes
Signal loss(%).0.83
Contractions.1
Fetal movements(per hour).8
per minute in high.0.20
per minute in low.0.14
Basal heart rate (bpm).164
Accelerations>10bpm and15 bpm.1
Minor decelerations (area20 lost beats).0
area of largest deceleration (lost beats).0
High episodes (minutes).5
at 28 weeks gestation 76.10% of normal fetuses have less variation
Low episodes (minutes).14
Short term variation (ms).6.74
ADVICE ONLY.This is NOT a diagnosis.

when a signal is given t____ ,it is an answer to callfor help.这个你会么?

When changing lanes, a driver should use his turning signal to let other drivers know . A．he is entering which lane B．which lane he is entering C．is he entering which lane D．which lane is he entering

高一英语中译英
长城给他们留下了深刻的印象（thw way）
你应该注意你站和坐的方式(lack of;signal)
缺乏延伸交流可能表示紧张(impression)

英语翻译
As soon as the instructor gives you the signal to start,dump out formulas,codes,outlines
from your memory onto the test answer sheets so that you will not have to worry about whether
you will remember the codes long enough until you get to the appropriate test question.

VHDL VGA中的综合问题
Signal colour cannot be synthesized, bad synchronous description. The description style you are using to describe a synchronous element (register, memory, etc.) is not supported in the current software release.
patter: process (x,y,mode,clk25,rst,colour)
variable count:integer range 0 to 25000000;
begin

case mode is
when "00" =>
if clk25'event and clk25 = '1' then
count:=count+1;
if count =25000000 then
colour
if clk25'event and clk25='1' then
if x =80 then
colour

英文中的“be”用法请教
小弟的英文实在是差,所以还请大家多多指点了,
我看见这样一句话：the signal that will be present on the trace 我有几个不明白的地方请教：
1.句中为什么要有个be?
2.be不是动词的总称吗?为什么不是am ,is ,或are?
3.如果去掉be有什么影响呢?我读起来感觉去掉be也很顺口.

because fo its exciting meaning, red is chosen as the signal for danger...
because fo its exciting meaning, red is chosen as the signal for danger, but closer analysis shows that a vivid yellow can produce a more basic state of alarm.请问,这句话的意思,谢谢.

英语翻译
draw the signal flow graph ofr direct form 2 implementation of the lti system withe system function
楼下的哥们，请你不要在网页的自动翻译里给我弄一下自动贴上来，你能看得懂你翻译的结果么？

signal的近义词?
She wondered how she could send a signal.She wanted to send _.
a.a letter
b.a sign
c.a signature
d.a message

英语翻译
那句话着这样的
A signal model provides a mathematical representation of a signal in terms of salient parameters.

You can see a large signal on the wall：＿＿＿＿! A．Long lives the PRC B．Long live the PRC C．Long does the PRC live D．Long do the PRC live

A digibox changes a digital signal to an analogue signal.
Why is one neede to receive digital TV at present?

翻译：Analog-Signal Data Acquisition in Industrial Automation Systems

英语翻译
who knows how to signal a passing ship for help with a mirror?这句话是啥意思啊
坐等回答~

英语翻译
While the main gate is open,The conditioned input signal pulses are passed through to the counting register,Where they are tallied and then scaled for output by the display circuitry.

英文好的朋友进来下
1,缺乏眼神交流可能表示紧张（lack of signal）
2,林先生的演讲持续了两个小时（last）
3,有时候说话方式是成功交际的关键（the key to）
4,为了避免困惑,你最好向她清楚地解释这个问题（avoid confusion）
5,杨小姐被认为是一个好的商店售货员,因为她和每一个顾客都很高兴地打招呼（consider greet）

求大神查下research on optical signal carrier transmission technology这篇文章的EI号

英语翻译
The intention is that a server will send this signal to a user system which is echoing locally (to the user) when the user is about to type something secret (e.g.a password).

英语翻译
Period of a cyclic signal measured as the time between every other pair of 50% crossings.

英语翻译
@param buf_size input length,to signal EOF,this should be 0 (so that the last frame can be output).

A signal is sent from the car to the central computer and the computer finds the route
The signal ( ) the car to the place where you want to go

求帮助查询EI号,Coherency analysis of ship geoacoustic signal
由于条件所限,无法查询EI Village,求帮助查询EI号.
Coherency analysis of ship geoacoustic signal
作者：
LIxiang,LI rong,YAN bing

英译汉：Battery level and received signal strength indicator level
CDMA 1x 无线模块的应用中有上面这句话.
请问其中文含义是什么?

问几个英语语法问题,
1、signal to be careful.这里的signal不是人啊,为什么可以用to be?to be是不是成为,变为的意思?
2、如果我要表达【我不能白送你东西】和【你这种行为是白送我东西,我不能接受!】这两个意思,这里的【白送】如何表达?
3、I got U,啥意思?为什么用got?这里用过去式想表达什么?

英语翻译
The fan beam signal shape registered in the sensor is affected by the roll angle of the sensor.The simplified signal shape can be divided into three sections:signal rise,full signal and signal fall.