所有的离子通道都是仅对某一种离子具有选择性的，而我们可以来想一想这种选择性是如何发生的，这也就是原子半径这个概念将会变得，非常重要的地方。
And all ion channels are selective for a single type of ion, and we can think about how that selectivity takes place, and that's where this idea of atomic radius is going to become very important.
数值模拟的结果表明：合理选择光辐射波长、辐射曝光时间和曝光剂量，可以选择性的热破坏光老化皮肤中的病损组织。
The results of numerical simulation show the lesion of photoaging skin can be selectively damaged if the wavelength, exposure duration and exposure dose of irradiated ligh are reasonably selected.
所述导电接触件中的每一个都与所述导电层中的一个直接且选择性连接，使得单独的量子阱可以通过所述导电接触件而被选择性访问。
Each of the conductive contacts is directly and selectively connected with one of the conducting layers, so the individual quantum Wells can be selectively accessed through the conductive contacts.
所述导电接触件中的每一个都与所述导电层中的一个直接且选择性连接，使得单独的量子阱可以通过所述导电接触件而被选择性访问。
Each of the conductive contacts is directly and selectively connected with one of the conducting layers, so the individual quantum Wells can be selectively accessed through the conductive contacts.
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