Energy-saving ethanol dehydration techniques to produce dehydrated alcohol mainly included four measures as azeotropy distillation, extraction distillation, absorptive process and membrane separation.

摘要节能型乙醇脱水制备无水乙醇的方法主要有4种：共沸精馏法、萃取精馏法、吸附法和膜分离法。

Objective To evaluate the efficacy of Cyclocryotherapy combined with retrobulbar injection of dehydrated alcohol in treating late neovascular glaucoma patients,that released their distress.

目的观察睫状体冷凝术联合球后无水酒精注射治疗新生血管性青光眼患者眼痛等临床症状的疗效。