初速

词型变化：名词复数形式 : muzzle velocities

muzzle velocity的用法和样例：

例句

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。
Moreover, because of the high utilization ration of runup velocity, the share of vertical velocity of takeoff in the initial jumping velocity is also smaller than Powel.另外，由于助跑速度利用率偏高，起跳垂直速度所占腾起初速度的比例也少于对方。

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