基本解释曲柄行程词组短语短語crank throw type crankshaft 曲柺軸the distance of crank throw 臂距值throw crank 推動曲柄three throw crank shaft 三連曲軸;三柺曲軸single throw crank shaft 單柺曲軸;單柺曲柄軸;單彎曲柄軸crank throw更多词组专业释义機械工程曲柺