名词
中文翻译：无烟矿井
同义词：
['clean mine', 'smokeless mine']
例句：
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1.The non-dusty mine is a rare and precious resource.
这个无烟矿井是一种稀有而珍贵的资源。
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2. The miners are working in the non-dusty mine to extract valuable minerals.
矿工们正在无烟矿井中开采有价值的矿物。
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3.The non-dusty mine has been untouched by human activities for centuries.
这个无烟矿井数百年来一直未被人类活动触及。