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.

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。

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Our results indicate that the ion dose on both the inner and outer surfaces and the end surface of the pipe changes with change of the auxiliary electrode radius.

计算机模拟结果显示了附加电极半径改变时，空心圆管内部、外部及端点表面处的离子注入剂量分布发生变化。

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Based on the simulation by computer, effects of parameters in calculation and size of rod radius on the ion exchange time of optimum refractive index distribution in glass rod lens are discussed.

在计算机模拟的基础上，讨论了计算参数和玻璃棒半径大小对获得最佳折射率分布时的离子交换时间的影响。

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