资本主义国家和发展中国家1979年的银产量为6600吨,比1978年的生产水平多180吨。国外专家认为,近几年的银产量预计将会进一步提高,因为一些新建的银选矿厂将投入生产,同时一些老厂进行了扩建。据“银学会”预测,世界36个国家307个矿山企业的银 The capital output of the capitalist and developing countries in 1979 was 6,600 tons, 180 tons more than in 1978. Foreign experts believe that the silver output in recent years is expected to further increase as some newly-built silver concentrator plants will be put into production while some old plants are being expanded. According to the “Silver Institute” forecast, the world’s 36 countries, 307 mines of mining enterprises