three-way valve三通: triplet; tee; tee joint; wye ...活瓣: valve; flap三通活塞,三通活栓: three way stop-cock三通活塞: three-way stopcock三通活栓: three-way cock; three-way stopcock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:三通活瓣，即可在微信中查询翻译
