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大家知道,现代的国民经济由几个部分组成,其中采矿工业占有主要地位。采矿部分从事原料的开采,即开采使用前须反复加工的原料。农业和采矿业为加工工业提供原料。现今采矿业为工业提供的原料按比重约占50％。今后随着原子能和平利用和生产合成物质的化学工业广泛的发展,采矿业在供给国民经济原料方面其比重将有更大的增长。为了顺
As we all know, the modern national economy consists of several parts, of which the mining industry occupies a major position. The mining part is engaged in the exploitation of raw materials, that is, the raw materials that must be repeatedly processed before exploitation. Agriculture and mining provide raw materials for the processing industry. The mining industry now supplies about 50% of the raw materials for the industry. In the future, with the extensive development of the chemical industry for the peaceful utilization of atomic energy and the production of synthetic materials, the mining industry will have a greater share of the supply of national economic raw materials. To order