它在轨道上运行的速度能达到每小时50公里。

It can run at the speed of up to 50 km/h on the tracks.

youdao

任何东西都不能逃脱黑洞的引力，因为没有任何东西的速度能超过光速。

Nothing can escape a black hole's gravity because nothing can travel faster than the speed of light.

youdao

在1995年，人们首次提出，长号能产生一种高能压力波，它的速度能略超音速。

It was first suggested in 1995 that the intense pressure waves, which can briefly exceed the speed of sound, could come from trombones.

youdao

- Part of the challenge is speed, too, how quickly you can get these answers in terms of getting them in on time.

部分困难也会来自于速度，你多快能做出答案,能否在规定的时间做完。

麻省理工公开课 - 化学原理课程节选

He said, first, let it go a little distance, take the distance over time, that gives you the velocity now.

他说,首先,让它运动一小段距离,距离除以时间,你就能得到现在的速度

耶鲁公开课 - 基础物理课程节选

and we like log algorithms, because they're really fast. A typical characteristic of a log algorithm is a pro-- or sorry, an algorithm where it reduces the size of the problem by a constant factor.

并且我们也很喜欢对数算法,因为它很快,对数算法的典型特性是高速，哦，抱歉，是他能以常数因子的速度,降低问题的大小，很明显。

麻省理工公开课 - 计算机科学及编程导论课程节选