名词
中文翻译：露天矿场
同义词：
['openpit mine', 'open-pit mine例句：1. The company hasbeen operating an open stope for overa decade.（该公司运营一个露天矿场已经超过十年了。）2. The open stope is amajor source of coal production in the region.（露天矿场是该地区主要的煤炭生产来源。）']
例句：
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1. The company hasbeen operating an open stope for overa decade.
该公司运营一个露天矿场已经超过十年了。
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2. The open stope is amajor source of coal production in the region.
露天矿场是该地区主要的煤炭生产来源。
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3.Due to environmental concerns, the government hasdecided to close several open stopes.
由于环境问题，政府决定关闭几个露天矿场。