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1·Correlation of critical mass velocity has been provided.

文中还给出了临界质量流速的试验关联式。

2·If you ever want to move yourself to the center of mass, you will have to know what the center-of-mass velocity is.

你若想要移动，在重心体系中，你就必须知道，重心速度是多少。

3·On the basis of experiment of two-phase pressure drop, for air-water flow through horizontal tube, the effect of mass velocity on the two-phase pressure drop is analyzed.

在对空气-水在水平放置的圆管内流动时的两相压降实验的基础上，分析质量流速对两相压降的影响。

4·Once you have started the boulder rolling, it develops momentum, which is defined by its mass and velocity.

一旦你开始让巨石滚动，巨石就会产生动量，这是由其质量和速度决定的。

5·Combining the measured velocity with the relative masses, they can calculate the mass of the star directly.

结合群众的相对速度测量，可以计算出它们的质量直接明星。

6·What de Broglie is saying we can know the wavelength of any matter at all, as long as we know its mass and it's velocity.

通过德布罗意所说的,只要我们知道了,它的质量和速度，我们可以知道,任何物质的波长。

7·'the mass and velocity of the expelled gas,' he told me in an E-mail that has forever endeared him to me,.

‘所放屁的质量和速度，’在那封极其讨我欢心的邮件中，他写道，‘与人体质量相比相当之小。’

8·And in terms of equations that we use, it's sometimes easier to plug in the fact, since momentum is equal to mass times velocity.

在我们使用方程这方面，事实上有时是很容易代入的，因为动量等于质量乘以速度。

9·And I have purposely made the arrow shorter to indicate that it has been slowed because we are going to argue its mass didn't change, so the only way to change its energy is to change its velocity.

我已经故意将这个箭头弄短，用来象征它变慢了，因为我们将证明它的质量没有变，只有它的能量改变了，也就是它的速度变了。

10·But in recent years astronomers have used radial velocity to find or confirm a number of planets down to a few times Earth's mass.

但是，近年来天文学家通过径向速度法去发现或证实大量小到只有几倍的地球质量的行星。