| 释义 |
曲柄qūbǐng曲轴的弯曲部分,作用是通过它和连杆把活塞的往复运动变成曲轴的旋转运动,或把曲轴的旋转运动变成活塞的往复运动。{crank; bent part of a shaft, which operates (together with the shaft attached perpendicularly) to convert reciprocating motion into circular motion, or circular motion into reciprocating motion} |