The incandescent light bulb, incandescent lamp or incandescent light globe makes light by heating a metal filament wire to a high temperature until it glows. The hot filament is protected from air by a glass bulb that is filled with inert gas or evacuated. In a halogen lamp, a chemical process that returns metal to the filament prevents its evaporation.
维基百科在左下角有语言选择,转英文就有了呢。
几个回答都被拦下了,要审查。
其实你的原文是在维基百科里面截出来的,如果在左下角的语言中点English,就已经有全段英文,不必在这里问的。
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