So of course if you're really purifying, say, ethanol from an ethanol water mixture, that's how you do it.
所以如果你真的去提纯，比方说，从乙醇水混合物里提纯乙醇，这就是操作方法。
Wood conversion and extract yield increased and gas yield decreased with the increasing of pressure and the molar fraction of water in ethanol water mixture.
提高压力或增加混合溶剂中水的摩尔分数均能使木材转化率和萃取物产率增加，气体产率降低。
The membrane can be used for concentrating ethanol from dilute ethanol water mixture through pervaporation process owing to its alcohol permselective properties.
通过对低浓度乙醇-水的渗透蒸发的试验研究，表明该膜是一种性能较好的新型优先透醇膜。
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