字典網>> 英漢字典>> B開頭詞條>>back-extractant的意思 漢英字典back-extractant中文翻譯：【化】 反萃取劑字典網 相關詞條：back-end network backseat back water back knotter back relation back donation backscattering spectrometry (BS) backswing back-emission electron radiography backstage