And the object's former motion state is variable motion.
而物体原来的运动状态是变速运动。
The law of variable mass motion of a soft rope is studied.
研究了一种变质量柔绳上升和下降的运动规律。
Is the motion with even variable velocity the result of constant force?
匀变速运动是恒力作用的结果吗？
The motion of variable mass system under variable force is studied using air track.
在气垫导轨上研究了变质量物体在变力作用下的运动规律。
The motion of variable mass system under variable force is studied using air track.
在气垫导轨上研究了变质量物体在变力作用下的运动规律。
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