finite reflux operation在: exist; be living部分: part; section; portion回流: back-flow; inverse flow; cou ...之下: under运转: revolve; turn round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:在部分回流之下运转，即可在微信中查询翻译
