To locate an atomic node value is to extract desired values from the XML document.

定位原子节点值也就是从XML文档中提取想要的值。

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First, determine the element tag and then get the text node value for the element tag.

您首先要确定元素标签，然后获得元素标签的文本节点值。

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In the main.xml file, add a TextView widget for each label and element text node value.

在main . xml文件中，为每个标签和元素文本节点值添加一个TextView小部件。

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For an angular node, we're just talking about what the l value is, so whatever l is equal to is equal to the number of angular nodes you have.

对于角向节点，我们其实就是在讨论l，的值是多少，因此不管，l，的值等于几,它就等于你所有的角向节点的数目。

麻省理工公开课 - 化学原理课程节选

We'll introduce in the next course angular nodes, but today we're just going to be talking about radial nodes, psi and a radial node is a value for r at which psi, and therefore, 0 also the probability psi squared is going to be equal to zero.

将会介绍角节点,但我们今天讲的是，径向节点，径向节点就是指，对于某个r的值,当然，也包括psi的平方，等于,当我们说到s轨道时。

麻省理工公开课 - 化学原理课程节选

We call that a node, r and a node, more specifically, is any value of either r, the radius, or the two angles for 0 which the wave function, and that also means the wave function 0 squared or the probability density, is going to be equal to zero.

节点就是指对，于任何半径，或者，两个角度,波函数等于，这也意味着波函数的平方或者概率密度,等于，我们可以看到在1s轨道里。

麻省理工公开课 - 化学原理课程节选