Prediction of properties of charged semipermeable membranes using density functional theory .
用密度泛函理论预测带电半透膜性质。
The passage of a fluid through a semipermeable membrane toward a solution of lower concentration , especially the passage of water through a cell membrane into the surrounding medium .
浸出液体通过半透膜向低浓度区的迁移，尤指水通过细胞膜进入周围生活环境。
Hydrogen can be effectively and economically recovered from the refinery gas by cryogenics , pressure swing absorption , or semipermeable membranes .
从炼厂气生产氢气，可以通过深冷法、压力回转吸收法和半（渗）透膜法，既高效、又经济。
Membranes which have pores so small that only the molecules of solvents , ions , and a few substances of very low molecular weight can pass through are called semipermeable ; these are characteristic of living cell tissue and are an essential feature of osmosis .
