采用浆体循环与陈化沉淀的方法，使沉淀的铀浓缩物由无定形凝胶体或微晶转化成易沉降过滤的粗晶体。
Through precipitate circulation and aging, the yellowcake slurry in amorphous or microlite form was transformed to crystal precipitate.
晶间孔隙主要发育在陡一段下部的粗粉晶含灰云岩中，白云石晶体为自形晶和半自形晶。
The former are mainly developed in the coarsesilt grained, euhedral and semi-euhedral crystalline calcitic dolomites occurring in the lower part of the first member of the Doushantuo Formation.
应用推荐