opposed blade damper双阀: bivalve瓣: petal clove; segment蝶阀: flygate; butterfly bamper; b ...阀瓣: valve clack [disk]蝶阀: flygate; butterfly bamper; butterfly gate; butterfly 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:双阀瓣蝶阀，即可在微信中查询翻译
