短語(yǔ)詞組短語(yǔ)backflow connection 回流管;回流連接;倒流連接backflow volume 回流液量backflow test 回流試驗(yàn);回流實(shí)驗(yàn)Backflow preventers 倒流防止器;調(diào)節(jié)閥pyelolymphatic backflow 腎盂淋巴反流pyelointerstitial backflow 腎盂間質(zhì)反流backflow damper 回流緩沖器backflow w 逆流回流;回流refluxing backflow 回流backflow preventer 回流防止器；防止回流設(shè)施 返回 backflow