串联的溶剂抽提

[建] cross-current solvent extraction

chuàn lián de róng jì choū tí ㄔㄨㄢˋ ㄌㄧㄢˊ ㄉㄜ˙ ㄖㄨㄥˊ ㄐㄧˋ ㄔㄡ ㄊㄧˊ