Article 29 in mining mineral resources, a mining enterprise must adopt rational mining sequence and methods and proper ore-dressing technique.
第二十九条开采矿产资源，必须采取合理的开采顺序、开采方法和选矿工艺。
Article 29 in mining mineral resources, a mining enterprise must adopt rational mining sequence and methods and proper ore-dressing technique.
第二十九条开采矿产资源，必须采取合理的开采顺序、开采方法和选矿工艺。
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