Application of ion exchange technology in the purification, epimerization analysis and detection of sugar was introduced.阐述了离子交换技术在糖的纯化 、 差向异构化及分析检测方面的应用....
I took the phone, and she went discreetly into the living room.我拿起了电话,她知趣地进了客厅。We were sitting on the couch in the living room watching TV.我们就坐在客厅的沙发上看电视。In this living room we've mixed glorious floral prints.在这间客厅,...