spontaneous combustion hazard zone
spontaneous combustion hazard zone
自燃危险区
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Combined with coal characteristics in goaf of fully mechanized top-coal caving, determinant criteria and methods of hazard zone in goaf are determined by theory of coal spontaneous combustion zone.
本论文结合综放面采空区浮煤自然发火的特点，运用煤自燃危险区域判定理论，确定了采空区自燃危险区域的判定条件和方法步骤。
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