coal mine fire protection
...煤矿防火 [gap=577]he fire prevention gives the draining water； security measure；Sewage treatment ；coal mine fire protection ...
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coal mine fire protection
煤矿消防
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Coal natural fire is one of the central factors leading to coal mine fire, and it is the emphasis in mine fire combat and protection.
煤炭自然发火作为矿井火灾的主要致因之一，是矿井防灭火工作的治理重点。
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