freely falling body motion 自由落体运动
Freely falling body was adopted to imitate high speed impact of small particle and convincing results were obtained.
采用自由落体冲击钠钙玻璃试件来模拟小球的高速冲击并取得了令人信服的结果。
The position and speed of a body falling freely from rest after successive intervals of time (figure not shown) is dealt with in what follows.
关于一个从静止状态自由下落物体在经过各连续时间间隔后的位置和速度(图略)在下面进行讨论。
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