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非传统的和新型的非金属矿物原料种类已达50余种,按国民经济利用方向可细分为若干亚类。本文介绍了它们在工农业方面的应用情况。
Non-traditional and new types of non-metallic mineral raw materials has reached more than 50 species, according to the direction of national economic use can be subdivided into several sub-categories. This article describes their application in industry and agriculture.