短语词组短語box -type piston 箱形活塞;繙譯;箱形活塞英語vhasve box type piston pump 閥室式活塞泵valve box type piston pump 閥室式活塞泵;閥箱式活塞泵vasve box type piston pump 閥室式活塞泵ale box type piston pump 閥室式活塞泵valve box type piston pu 閥室式活塞泵 返回 box type piston