The safe, reliability and economic operation lie on combustion system of boiler.
燃煤电厂的安全性、可靠性和经济性在很大程度上取决于锅炉燃烧系统。
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The spontaneous combustion of coal seam endangers the safe production.
井下煤层自燃严重危害着安全生产。
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模块上移
模块下移
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