Methane explosion accidents occur frequently, and accurate and real-time detection and early warning of methane concentration are the effective means of preventing these accidents.
瓦斯爆炸事故频繁发生，对瓦斯浓度进行准确、实时检测和预警是治理瓦斯危害的有效手段。
Methane explosion triangle method, which is commonly applied to judge the explosion risk of mixed inflammable gases in the mine fire district, considers only the main component gas.
矿井火区可燃性混合气体爆炸危险性的判断，目前常用单纯的瓦斯爆炸三角形判别法。
The relations between the maximum explosion pressure, the maximum quantity of draw-off heat and coal dust concentration, methane concentration were calculated.
分别推导出粉尘爆炸放热量和最大爆炸压力与煤尘浓度、甲烷浓度等影响因素的关系。
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