位移，初速度，末速度，加速度和时间。

Displacement, Initial velocity, Final velocity, Acceleration and Time.

这个方程的意义是，如果你知道某个给定时刻的速度，并且知道初速度，你就能知道运动的时间。

What that means is, if you know the velocity of the given time and you know the initial velocity, you know what time it is.

研究了触点分离初速度（动触点与静触点刚刚分离时刻的动触点速度）对电弧能量的影响。

This paper emphasizes on the influences of arc energy by the contact breakaway initial velocity that is the velocity of moving contact at the time of moving contact and stationary contact breaking.

因而在投掷过程中，如何提高铅球的初速度就成为了技术的关键。

So how to improve the initial velocity becomes the key to the question during the process of shot putting.

并且速度为我们设定的初速度

Velocity it had at the beginning of our experiment.

给它一个初速度。

I give it a velocity.

弹丸初速度是影响外弹道性能的主要参数。

The cannon shot muzzle velocity is the mainly parameter which influences outer ballistic performance.

卫星要在其轨道上运行所需要的只是由运载火箭给它的初速度。

All the satellite needs in order to move in its orbit is the initial speed given it by carrier rocket.

给出以不同初速度和高度发球时球拍角度的参考值.

Reference values of the serving angles of the racket with different speed and height were provided.

对于不同矿山地质条件下的煤层，必须实测其工作面煤层卸压带和塑性极限应力区范围，才能准确确定钻孔瓦斯涌出初速度合理的测试深度。

As for the seams with different mine geological conditions, a site measurement should be made for the area of the seam pressure released zo …