check alecheck valvenon-return alenon-return valve逆: contrary; counter止: stop; cut out阀: established house or power g ...止回阀: check valve; check-valve mou ...止回阀, 逆止阀, 单向阀: inverted valve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:逆止阀；止回阀，即可在微信中查询翻译
