短語(yǔ)詞組短語(yǔ)gear compound oil pump 齒輪油泵gear lubricating oil pump 齒輪潤(rùn)滑油泵external gear type oil pump 外嚙合齒輪油泵external gear oil pump 外齒輪油泵turning gear oil pump 盤車裝置油泵;盤車油泵barring gear oil pump 盤車油泵marine gear oil pump 船用齒輪油泵internal gear oil pump 內(nèi)齒輪泵outer gear oil pump 外齒輪油泵 返回 gear oil pump