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为了加速祖国的社会主义建设,为了适应当前钢鉄工业的突飞猛进的发展,必須有大量的銅与之相适应。这就要求我們以后在大力发展钢铁工业的同时,必须大力增加銅的生产。在銅的生产中,选矿是一个重要的环节,因此,大力研究和推广土法选銅,就具有极重大的意义。以下我們将簡单的叙述几种土法选铜的方法,主要是提供給根本沒有选矿基础的手工业合作社或新开办的选矿场参考。由于篇幅所限,內容或有不够全面之处,希望讀者根据具体情况考虑和改进。
In order to accelerate the socialist construction in the motherland, in order to adapt to the rapid development of the steel industry at present, a great deal of copper must be adapted to it. This requires us to vigorously develop the steel industry at the same time, we must vigorously increase copper production. Mineral processing is an important link in the production of copper. Therefore, it is of great significance to vigorously study and popularize copper selection from indigenous countries. In the following, we will briefly describe several methods for copper selection by indigenous methods, mainly for handicraft cooperatives that have no basis for mineral processing or for newly-established ore dressing sites. Due to space limitations, content or not enough comprehensive, hope readers to consider and improve according to the specific circumstances.