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modern gallium industry in China
释义
modern gallium industry in China
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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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regularly closed set
regularly connected complex
regularly convergent sequence
regularly convergent series
regularly convex function
regularly convex set
regularly homotopic
regularly homotopic mapping
regularly intermittent pulse
regularly isotopic
regular manifold
regular mapping
regular map projection
regular Markov chain
regular matrix
regular matroid
regular maximum ideal
regular measure
regular method
regular metric
regular mixture
regular mode and reverse mode
regular model
regular module
regular moment
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