The radial well technique is a new method popular in recent years for engineering dewatering.

辐射井技术是近几年用于工程降水的新方法。

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A radial well on the river bed is an efficient construction for taking in the water supply engineering. It is suitable for small and medium-sized towns, industrial and mining enterprises.

河床辐射井是给水工程中一种效果很好的取水构筑物，它适用于中小城镇和工矿企业。

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Radial horizontal well is the most complicated one in horizontal well series, it has a major horizontal section and one or several branch sections.

辐向水平井是水平井系列中的高难度井，它除了有一段水平井段外，还有另外一条或多条分支井段。

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So, there are 2 different things that we can compare when we're comparing graphs of radial probability distribution, and the first thing we can do is think about well, how does the radius change, or the most probable radius change when we're increasing n, when we're increasing the principle quantum number here?

当比较这些径向概率分布图,的时候，我们可以比较两个东西，第一个就是考虑当我们增加ｎ,当我们增加主量子数的时候，半径怎么变，最可能半径怎么变化？

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