apr type circulating valveaprtype circulating valvee环: ring; hoop空: leave empty or blank; empty; ...压: press; push down; hold down; ...控: accuse; charge循环: circulate; circle; round; re ...下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:环空压控循环阀，即可在微信中查询翻译
