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自然的火灾 spontaneous fire
First, the serious hazards induced by mine spontaneous fire and necessity to be prevented and controlled are pointed.
本文首先指出了矿井自然火灾的严重危害以及防治的必要性。
参考来源 - 矿井自然火灾的突变研究·2,447,543篇论文数据，部分数据来源于NoteExpress
本文首先指出了矿井自然火灾的严重危害以及防治的必要性。
First, the serious hazards induced by mine spontaneous fire and necessity to be prevented and controlled are pointed.
介绍采用“综合直接灭火法”处理穿层井筒自然火灾的方法、灭火实例及灭火效果。
The paper introduces how to extinguishing fire of throughout shafts by the comprehensive direct fire-fighting methods.
通过媒体的报道和当地所拍摄的照片可以看出干旱已经严重影响全国民生，由此引发了自然火灾甚至摧毁了生命。
We all saw reports and images of the drought that affected the country, causing fires and even loss of lives.
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