短語詞組短語crank k arm 曲臂crank shaft arm 曲柄軸臂crank rocker arm mechanism 曲柄搖桿機(jī)構(gòu)brake crank arm 制動(dòng)曲柄crank arm pin 拐份銷;倒片揺把銷crank arm awning 曲臂遮陽篷differential control crank arm 差動(dòng)操縱搖臂foot rest crank arm 翻譯;腳踏曲柄臂cotter for crank arm 曲柄臂栓 返回 crank arm