Deoxygenate was used to remove the remanent oxygen from gas for supplying the high purity gas.脱氧剂用于脱除气体中的微量氧气以提供含氧量极微的高纯气体.Objective : To explore the relation between specific rotation and purity of sorbitol.目的: 探讨山梨醇的比旋...
The training covers extended periods in obstetrics and gynaecology.该培训包括产科学和妇科学的增加课时。She specializes in obstetrics.她是产科专家.Surgical training takes at least nine years, or 11 in the case of obstetrics.外科至少需要9年的专业训练，产科甚至需要1...
Ten days later Carmen received a bank draft for a plane ticket.10 天后卡门收到了一张用于购买机票的银行汇票。Gregory shared confidences with Carmen.格雷戈里和卡门说了知心话。She stood looking at Carmen with her mouth agape.她站着，张大了嘴看着卡门。They're playin...