短语词组短语box -type piston 箱形活塞;翻译;箱形活塞英语vhasve box type piston pump 阀室式活塞泵valve box type piston pump 阀室式活塞泵;阀箱式活塞泵vasve box type piston pump 阀室式活塞泵ale box type piston pump 阀室式活塞泵valve box type piston pu 阀室式活塞泵 返回 box type piston