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单词
placer mining
释义
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
Related Forms
继承用法
placer miner
n.
(名词)
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更新时间:2026/3/2 7:20:57