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...
They worried about the purity of tap water.他们担心自来水是否纯净。The purity of the water is tested regularly.水的纯度定期检测。The students are asked to prove the purity of copper.要求学生们检验铜的纯度....