back extraction
短语词组
- back pressure extraction turbine 背压抽气式汽轮机
- back -extraction or stripping 反萃取
- Back pressure extraction 抽汽背压式汽轮机
- extraction and back -extraction 萃取和反萃
- On -line back-extraction 在线反萃取
- back extraction method 逆萃取法;反萃取法
- Extraction and back extraction 萃取反萃取
- reduction back extraction 反萃取 返回 back extraction