基本解釋曲柄行程詞組短語短語crank throw type crankshaft 曲拐軸the distance of crank throw 臂距值throw crank 推動曲柄three throw crank shaft 三連曲軸;三拐曲軸single throw crank shaft 單拐曲軸;單拐曲柄軸;單彎曲柄軸crank throw更多詞組專業(yè)釋義機械工程曲拐