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前言选矿的目的就是要富集有用矿物,抛弃大量废石为冶炼提供精料。在过去多年的科研、设计和生产实践中,往往只强调选矿的主要技
Preface The purpose of beneficiation is to enrich useful minerals, abandon a large number of waste rock to provide concentrate for the smelting. In the past many years of scientific research, design and production practice, often only emphasize the main beneficiation technology