常見例句雙語例句The utility model relates to a single-action two-way equalizing valve, comprising a valve body, a valve plug, a valve rod, a pressing cover, a compensating cushion ring, etc.本實用新型是一種單動雙通平衡閥,由閥體、閥塞、閥桿、壓蓋、補償墊圈等組成。ip.com 返回 single action pressing