Aren't all membranes semi-permeable? That is, the whole point of a membrane is that it lets some things through and others not. Membranes by definition are permselective or semi-permeable barriers.
也就是说他认为所有
膜都是半
，
定义来看就是选择过
者半结构。
渗[穿]
Aren't all membranes semi-permeable? That is, the whole point of a membrane is that it lets some things through and others not. Membranes by definition are permselective or semi-permeable barriers.
也就是说他认为所有膜都是半，定义来看就是选择过者半结构。
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