煤矿
(煤礦)coal mine
Example Sentences
国家全面推进智能化绿色煤矿建设，实现了深部矿井井下少人乃至无人的安全开采。
guó jiā quán miàn tuī jìn zhì néng huà lǜ sè méi kuàng jiàn shè, shí xiàn le shēn bù kuàng jǐng jǐng xià shǎo rén nǎi zhì wú rén de ān quán kāi cǎi.
The country has comprehensively promoted the construction of intelligent green coal mines and achieved safe mining in deep mines with few or even no people.
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