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锰为浅灰色硬而脆的金属。锰及其化合物在工业生产中使用很广,炼钢、制造电焊条与干电池,化工、玻璃、陶瓷、染料、油漆、塑料、合成橡胶以及化肥、农药等生产都需要它。在锰矿的开采、运输、加工(碾磨、筛选、包装)过程中,工人都要接触锰尘,尤以加工过程最为严重。 在使用锰制
Manganese is a light gray hard and brittle metal. Manganese and its compounds are widely used in industrial production. They are needed in steelmaking, manufacturing of welding electrodes and batteries, chemical industry, glass, ceramics, dyes, paints, plastics, synthetic rubbers, fertilizers and pesticides. In the mining, transportation, processing (milling, screening, packaging) of manganese ore, workers are exposed to manganese dust, especially in the most serious process. Made of manganese