tortional pendulum扭转摆
tortional Fretting扭转微动
Vibration tortional扭转振动
Tortional vibration扭转振动
tortional ibration damper扭转振动减震器
Simple harmonic tortional vibration简谐扭振
crankshaft tortional vibration damper曲轴扭转减振器
crankshaft t tortional vibration damper曲轴扭转减振器