对于电介质来说，它是介电常数和介质损耗角的正切的乘积，这是对出现在电介质中的热效应的量度。

Of a dielectric the product of dielectric constant and the tangent of its dielectric loss Angle; a measure of the heating effect which occurs in dielectrics.

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确定了包括伸缩、变角、扭曲以及伸缩-伸缩相互作用的16个力常数。

Altogether 16 force constants including stretching, bending, torsion and stretching-stretching interactions are obtained.

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采用埃夫琴晶胞推导了计算二维三角离子晶体的马德隆常数的通项公式。

By Evjen crystal cell, the calculation formula about Madelung constant for the two-dimensional trigonal ion crystal was deduced.

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The more important thing that I want you to notice when you're looking at this wave equation for a 1 s h atom, is the fact that if you look at the angular component of the wave function, you'll notice that it's a constant.

我要你们注意的,更重要的一点是,当你们看到,这个氢原子1s轨道方程的时候，如果你们看,波函数，的角向部分，你们会发现它是一个常数。

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