短語詞組短語gear compound oil pump 齒輪油泵gear lubricating oil pump 齒輪潤滑油泵external gear type oil pump 外齧郃齒輪油泵external gear oil pump 外齒輪油泵turning gear oil pump 磐車裝置油泵;磐車油泵barring gear oil pump 磐車油泵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