在程序界面上填加控件。

You add a control to your application UI.

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介绍了纸张填加剂含量检测的基本原理。

This article introduces basic principle of measuring additives content of paper.

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填加无机耐热填料石英粉。

Inorganic filler, such as quartz powder, was filled.

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So we can add three hydrogen atoms here, and fill in our other orbitals right here.

我们可以加三个氢原子到这里，填满其它的轨道。

麻省理工公开课 - 化学原理课程节选

We need 8 plus 4 is 12 for full shells.

我们需要8加4等于4,12个电子来填满壳层。

麻省理工公开课 - 化学原理课程节选