- Similar cyclic stresses may have occurred due to wind-induced swaying motion during storage.
同样在存放时由风力引起的横向摆动也可以产生类似的循环应力。
- Impulsion may be recognized by the freely swinging back and the participation of all the joints in the forward motion.
自由摆动的背部和身体所有关节都参与向前的运动是动力的表现。
- The steam-engine piston makes a cyclic motion.
蒸汽机活塞做往复运动。
- This is a mechanism using a slider to transit a rotation to reciprocating the linear motion skimpily.
此机构利用一滑槽，即可简单的将圆周运动转成直线的简谐往复运动。
