知识贝壳
知识贝壳
所属栏目：英汉双解有机化学
An amorphous form of carbonmade by heating wood or other organic ma-terial in the absence of air. Activated char-coal is charcoal heated to drive off absorbedgas. It is used for absorbing gases and forremoving impurities from liquids.碳的无定形形式,是在缺乏空气的条件下加热木 ......（本文共 271 字 ） [阅读本文] >>