DICT.TW Dictionary Taiwan

 devitrification
 除去玻璃光澤,使不透明

 De·vit·ri·fi·ca·tion n. The act or process of devitrifying, or the state of being devitrified. Specifically, the conversion of molten glassy matter into a stony mass by slow cooling, the result being the formation of crystallites, microbites, etc., in the glassy base, which are then called devitrification products.
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