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矿井通风
释义
矿井通风
Encyclopedia
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矿井通风
释
mine ventilation
矿井通风
向井下连续输送新鲜空气,稀释并排出有毒有害气体和粉尘,以及调节井下气候的全过程。
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Chongning-Edition Tripitaka,block-printed edition,Northern Song Dynasty
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