回收逆向物流
recycle reverse logistics
逆向物流回收模式
take-back model in reverse logistics
逆用回转变流机
inverted rotary converter
再循环水流回流
recirculation flow run back
pH-区带精制逆流色谱
pH-zone-refining CCC
pH-Zone refining counter-current chromatography
槽式连续逆流提取
continuous countercurrent extraction in vessel