Modification of nonmetallic mineral materials can be classified as physical and chemical.

非金属矿物材料的改性方法可分为物理改性和化学改性.

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The central region has abundant energy, multi - metal and nonmetallic mineral resources.

中部地区拥有丰富的能源 、 多种金属和非金属矿产资源.

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Nonmetallic mineral resources used as chemical raw materials are distributed in unbalance in China.

中国化工原料用非金属矿产资源分布不均衡.

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Because aluminium is different from nonmetallic mineral, its crush corresponds with milling's generality and specialty.

铝与其他非金属矿物不同, 其粉碎工艺既具有球磨工艺的普遍性又具有特殊性.

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