The body appears to remain suspended in space if it has no initial velocity relative to the elevator . 如果物体相对于升降机没有初速度的话,这个物体看起来就好象是一直悬在空中不动。
The insertion of the initial velocity is accomplished by offsetting the motor shaft position prior to the start of navigation . 初始速度的加入可以在导航开始前用预先装走马达轴的位置来实现。
The measurement system of projectiles initial velocity based on virtual instrument technology 基于虚拟仪器技术的弹丸初速测量系统
To change the initial velocity , click on the applet and then change the velocity slidebar 你可以改变气体分子的速度来观察气压有怎样的变化。
Technical condition about inflatable device for determining initial velocity of gas emission from boreholes 充气式钻孔瓦斯涌出初速度.测定装置技术条件