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根据1970—1979年,我国统配煤矿发生瓦斯爆炸事故分析统计,积聚瓦斯的直接原因构成为:引起瓦斯爆炸的火源原因构成:煤矿瓦斯爆炸事故的成因简析@李征宇
According to the analysis and statistics of gas explosions accident occurred in China’s coal mines during 1970-1979, the direct reason for accumulating gas is as follows: Causes of gas sources causing gas explosion: Causes of gas explosion in coal mines Li Zhengyu