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modern gallium industry in China
释义
modern gallium industry in China
Encyclopedia
工学
中国现代有色金属工业
释
modern gallium industry in China
中国现代镓工业
中国镓资源丰富,2008年共探明镓矿区166个,资源储量为13.66万吨,主要分布在内蒙古、广西、贵州、河南、山西、云南等省区。广西、贵州、河南、山西等省区的镓主要存在于铝土矿中,其他部分省区的镓主要存在于锡矿或闪锌矿中。中国的镓工业始于1957年。
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regular icosahedron
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regular integral element
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regular isotopy invariant
regularity
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regularity axiom
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