So the travelling speed of stress wave can be obtained.
从而得到应力波的传播速率。
The increase of lifting speed and trolley travelling speed have raised handling efficiency.
起升速度与小车运行速度的增加，提高了搬运效率。
Gap state control system is an important component of WEDM with fast wire travelling speed.
间隙状态控制系统是快丝机的重要组成部分。
The final targets of them are to increase the travelling speed and to reduce the travelling time.
达速与提速的最终目标是提高旅行速度，缩短旅行时间。
A good dynamic stability is the basis of multiple cut on machine tool of WEDM with high wire travelling speed.
良好的电极丝动态性能是高速走丝多次切割加工的基础。
The principle and method for testing brake character, travelling speed, break out force and rim pull are described.
并论述了制动性能、车速、掘起力、牵引力试验台的检测原理和方法。
Based on result of calculation, proposal is made to limit the maximum travelling speed of the crane and the speed with which the crane can run on a curve with small radius.
根据计算结果对该起重机最高行驶速度和通过小半径曲线的速度限制提出了建议。
Only by tackling the problems concerning various aspects in a comprehensive way can we gain the breakthrough in raising the machining accuracy of WEDM with high wire-travelling speed.
应当对高速走丝电火花线切割的各个方面综合治理，才能在提高加工精度上取得突破性成果。
They were travelling at a speed that was double the legal limit.
他们正以两倍于法定限速的速度行驶。
The car was travelling at top speed.
那辆汽车全速行驶。
A sudden stop can be a very frightening experience, especially if you are travelling at high speed.
突然停车是一种非常可怕的经历，尤其是当你正以高速行驶时。
If this measurement had agreed with expectations, and showed neutrinos travelling at or below light speed, how carefully would we be examining the uncertainties?
如果实验结果与预期相符，并显示中微子以光速或低于光速的速度前进，我们会有多小心的检查不确定性呢？
A study by researchers at Royal Holloway, University of London reveals that primary school children cannot accurately judge the speed of vehicles travelling faster than 20 MPH.
英国伦敦大学皇家霍洛威学院的一项研究表明，小学儿童不能准确判断行驶速度大于每小时20英里的车辆的速度。
It is then possible to calculate the vehicle's direction and speed, which can help identify the class of road on which it is travelling.
之后还可能计算出汽车的方位和速度，这样就可以确定它走的是什么类型的道路。
The planet is so far away, spaceships travelling close to the speed of light would take 20 years to make the journey.
这颗行星过于遥远，以接近光速飞行的宇宙飞船都要花费20年时间才能抵达。
Two years later it would be travelling at 90 per cent of the speed of light.
在过两年，速度达到光速的90%， 远离太阳系； 发射四年之后，飞船开始了时间旅行。
When it is running at full throttle, the protons going round it will be travelling within 30cm a second of the speed of light.
当它以最高速度运转时，环绕其轨道传播地质子将达到每秒仅比光速低30厘米的速度。
Light zips along at the actual "speed of light", faster than which nothing can go, only when it is travelling through a vacuum.
只有在真空中，光的速度才能达到真正的“光速”，这是世界上最快的速度。
Moreover, because the universe is so vast, it takes years for a signal travelling at the speed of light to reach only as far as the next star to our sun.
另外，由于宇宙是如此广袤，信号以光速从最近的一颗恒星传到太阳也要花去数年时间。
The reception isn't great while travelling at speed and doesn't work at all underground. But the quality is improving all the time.
车速飞快时信号不稳定，在地下则根本没信号，但是总体质量是在不断上升的。
Just down the road too, in Sparks, was a warehouse containing the strange, finned, tubular car in which he hoped to break the land speed record, travelling as close as he could to 800 miles an hour.
那里保存着那种奇怪，有翼的喷气式汽车。 福塞特希望驾驶它打破陆地速度记录，尽可能的接近时速800英里。
That means that, if you were travelling at the speed of light the whole time, it would take 4.2 years to get there "- or about 50, 000 years using current rocket science."
这意味着，如果你以光的速度履旅行，到那需要4.2年，或者用现在的火箭科学需要50,000年。
Since the speed of light is 299, 792, 458 metres per second, the neutrinos were evidently travelling at 299, 798, 454 metres per second.
因为光速是299 792 458米每秒，而中微子的速度是299 798 454米每秒。
At full power, trillions of protons will race around the LHC accelerator ring 11, 245 times a second, travelling at 99.99 percent the speed of light.
全功率运行时，数兆的质子在大型强子对撞机的加速环中加速，一秒钟可绕行11245圈，速度达到光速的99.99%。
To win the competition, a vehicle has to climb all the way up the kilometre-long cable, travelling at an average speed of five meters (16 feet) per second.
赢得奖金的标准是，设计者的机械必须能够全程攀上长达一公里的轨道，同时平均速度不能低于每秒5米（16英尺）。
The "black box" recorder on a train that derailed in Australia injuring more than 100 passengers this week showed it was travelling at almost twice the speed limit when the accident occurred.
11月17日，澳大利亚警方找到了于16日在澳大利亚昆士兰州发生脱轨倾覆事故的一高速列车上的黑匣子。 黑匣子记录表明，事故发生时，列车的行驶速度几乎超过限制时速的两倍。
France broke the world rail-speed record when a high-speed train travelling on the new line from Paris to Strasbourg touched a top speed of nearly 575kph (357mph).
在巴黎到Strasbourg的铁路线上，一列高速列车打破了列车时速的世界记录，他的最高时速到573千米每小时。
France broke the world rail-speed record when a high-speed train travelling on the new line from Paris to Strasbourg touched a top speed of nearly 575kph (357mph).
在巴黎到Strasbourg的铁路线上，一列高速列车打破了列车时速的世界记录，他的最高时速到573千米每小时。
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