短語(yǔ)詞組短語(yǔ)back pressure extraction turbine 背壓抽氣式汽輪機(jī)back -extraction or stripping 反萃取Back pressure extraction 抽汽背壓式汽輪機(jī)extraction and back -extraction 萃取和反萃On -line back-extraction 在線反萃取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