[mass noun](Chemistry)the process of boiling a liquid so that any vapour is liquefied and returned to the stock (化)回流 ■(technical)the flowing back of a liquid, especially that of a fluid in the body (技)(液体,尤指体内液体)回流,反流
verb
[no obj.](Chemistry)boil or cause to boil in circumstances such that the vapour returns to the stock of liquid after condensing (化)使回流 ■[no obj., with adverbial of direction](technical)(of a liquid, especially a bodily fluid) flow back (技)(液体,尤指体内液体)回流,反流