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comprehensive industrial grade
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comprehensive industrial grade
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工学
〔矿产工业指标〕
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comprehensive industrial grade
矿产综合工业品位
在某些矿床或矿体中,有两种以上矿产,按等价原则,将其某一组分折算为另一主要组分的等价品,或按几种矿产品的综合价格制定的工业品位。
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