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选矿
用物理或化学方法将矿物原料中的有用矿物与无用矿物(通常称脉石)或有害矿物分开,或将多种有用矿物分离的过程。早期选矿在中国又称有用矿物精选、矿物工程,后来通称矿物加工,也称矿产资源加工。
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electric polarization
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electric potential difference
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Electric Power Automation Equipment
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electric power industry in Anhui Province
electric power industry in Argentina
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