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一、非金属矿工业在我国国民经济中具有重要的地位和作用(一)非金属矿工业是国民经济发展的基础工业。各种非金属矿产品具有多种独特的优异性能(如耐热隔热性、导电性、绝缘性、润滑性、耐酸碱性、坚硬性及耐磨性等物理性能和多种化学性能),是发展国民经济、改善人民生活和巩固国防的重要原料和配套产品,尤
1. The non-metallic mineral industry has an important position and role in China’s national economy. (1) The non-metallic mineral industry is the basic industry for the development of the national economy. A variety of non-metallic mineral products have a variety of unique and outstanding properties (such as thermal insulation, electrical conductivity, insulation, lubricity, acid and alkali resistance, hardness and wear resistance and other physical properties and a variety of chemical properties) Is an important raw material and ancillary product for the development of the national economy, improvement of people’s lives, and consolidation of national defense.