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反萃取物
1、case back───回写
2、back───v.(使)后退,DaoTui;支持;下赌注;赞成;增援;伴奏;附带收录进……;逆时针转向;收帆;背对着;在……背后加固;位于……的后面;adv.向后地;向后仰地;在背面;有距离地;忍住地;回原处;以前地;在前面地;回报;落后地;恢复正常;再度流行;;n.背部;脊梁骨;后部;背面;末尾;(椅子)靠背;后卫;船体;(飞机)机身;(人的)躯干;;n.(Back)(美)巴克(人名);adj.后面的;背后的;过去的;拖欠的;舌后的
3、back and back───背靠背
4、back my back───背对着我
5、stand back to back───背靠背站着
6、grow back───重新长出
7、back to back───背靠背;连续,紧接;背靠背; 背对背
8、buy back───产品返销;补偿交易;补进;买回(原有之物); 返销
9、back back───后退
1、The quality and the yield of 10-HAD are mainly influenced by alcohol concentration, alcohol volume, back extractant water quantity, and temperature.───浓度、不同体积的乙醇对产率及质量有影响;不同体积的反萃取剂水对产率也有影响;不同温度对结晶有影响。
2、solvent was used as gold extractant and a sort of compound back extract reducer was used for reduction at one step in normal temperature.───用某溶剂作为金萃取剂,用某复合反萃还原剂在常温条件下进行一步还原;将箱式混合澄清槽经改进后作为萃取器。