短语词组短语inertia welder wheel 惯性轮inertia momentum wheel 惯性动量轮Variable inertia reaction wheel 变惯量反作用飞轮variable mass inertia wheel 惯性转鼓The inertia wheel vibration 惯性轮振次inertia wheel pendulum 惯性摆系统 返回 inertia wheel