英语词汇placer mining的读音、翻译及短语词组释义-英汉双解词典-求索网

单词	placer mining
释义	placer mining placer mining n.（名词）The obtaining of minerals from placers by washing or dredging.采砂矿：通过清洗或网捞从砂矿中获得矿物继承用法:placer miner n.（名词）
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