短语词组短語crank k journal 曲軸頸diameter of crank journal 曲柄梢頸直逕crank journal milling 曲軸軸頸銑削crank journal lathe [機]曲軸主軸頸車牀crank connecting rod journal lathe [機]曲軸連杆頸車牀JOURNAL CRANK PIN 曲柄銷軸頸 返回 crank journal