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短语

surface mining

矿业, 行业 exploitation à ciel ouvert; exploitation par couches; exploitation par havage
自然资源和野生动物保护 exploitation à ciel ouvert (oil shale production)
 英语 词库
surface mining
珠宝 Mining that takes place when the stones can be found close to the surface. This type of mining entails little heavy equipment as only the soil and overlying mineral deposits are removed. Surface mining is most commonly used to retrieve coal deposits.
surface mining
: 1 短语, 1 学科
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