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All the halogens require one more electron to complete a p-shell .

所有的卤素都要求得到一个额外的电子来填满p壳层。

Chlorine and iodine are halogens .

氯和碘是卤素。

In commercial spaces , such as retail shops where bright bulbs burn constantly , leds are replacing halogens .

而在商业领域，如零售商店那些明亮的电灯泡，发光二极管正在取代卤素灯。

Sodium chloride for industrial use -- determination of halogens expressed as chlorine -- mercurimetric method .

工业用氯化钠以氯表示卤素的测定汞量法。

Standard test method for free halogens in halogenated organic solvents and their admixtures .

卤化有机溶剂及其掺和物中游离卤素的测试方法。