而卫星外壳正被硬化，以保护电路免受微波或其他电子武器的灼伤。

Satellite cases are being hardened to prevent circuitry from being fried by microwaves or other electronic weaponry.

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空军一号配有一间健身房，电子防御装置和能使其免受核爆炸破坏的外壳。

Air Force One has a gym, electronic defence units and shielding to protect it from nuclear blasts.

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这些纳米天线由蚀刻硅晶片制作而成，用到了制作微处理器所需的高端技术，塑料片可以塑型，能适合示汽车和任何便携式电子产品的外壳。

The stamps themselves are made by etching silicon wafers using the technique that makes microprocessors, and the sheets can be shaped to coat anything from cars to portable electronic devices.

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So let's do a quick clicker question, and you tell me how many valence electrons does fluorine have? Remember, valence electrons are different from core, they're only the outer-most electrons in the outer-most shell.

那么让我们来做一个小选择题，请大家来告诉我,氟有多少个价电子，要记得，价电子与芯电子不同，它们是在最外壳层的最靠外面的电子。

麻省理工公开课 - 化学原理课程节选