基本解釋n.差向異構同根派生 epimerism相關詞英漢例句It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect . 闡述了差向異構體和差向異構化的定義。差向異構化技術在醫(yī)藥和農(nóng)藥中間體中應用廣泛,前景廣闊。RESULTS The chlortetracycline's epimer, tetracycline and its epimer, as impurities in chlortetracycline have been determined by the liquid chromatogram and its first order mass spectrum. 結果得到金霉素樣品液相色譜圖以及液相色譜峰對應的一級質(zhì)譜圖。對譜圖進行分析歸納,推測金霉素樣品中含有四環(huán)素、差向異構四環(huán)素和差向異構金霉素雜質(zhì)組分。Keywords Luminescent bacterium;Tetracycline;Epimer;Veterinary medicine; 發(fā)光菌;四環(huán)素;差向異構體;獸藥;The isolation and identification of two new epimer from the mother liquid of testosterone 睪丸素母液中兩個新差向異構體的分離與結構鑒定Isolation and identification of two new epimer from the mother liquid of megestrol acetate 安宮黃體酮母液中兩個新化合物的分離與結構鑒定epimerism更多例句