常見(jiàn)例句雙語(yǔ)例句A lubricating oil pump shaft and a cam transmission shaft are respectively sheathed in series in two inner cavities.兩內(nèi)腔內(nèi)分別串套機(jī)油泵軸和凸輪傳動(dòng)軸。ip.com 返回 cam shaft lubricating oil pump