第一种方法是利用氧化还原反应，采用分离、萃取、升华等工序回收废碘液中碘的工艺。
In the first method we make use of oxidation-reduction to adopt iodine reclaiming process of separation, extraction and sublimation from waste iodine liquid.
本文提出一种以石英灯为加热器的碘热升华喷枪显现潜手印的新方法。
This article introduce a new method to make the latent fingerprints emerge by using the iodine heat-sublimating spray-gun heated by a sort of quartz lamp.
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