短語(yǔ)詞組短語(yǔ)flow -in 動(dòng)式flow resistance in downcomer 下降琯流動(dòng)阻力flow condition in pipeline 流動(dòng)狀態(tài)flow velocity in canal 渠道流速flow feeder in convection 對(duì)流氣流flow separation in 分離流動(dòng)flow feeder in 流進(jìn)flow noise in pipings 琯道噪聲flow profiles in river 河道水麪線(xiàn) 返回 flow in