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煤矿瓦斯微机自动监控系统兖州矿区职工大学马守卫济宁无线电管理委员会张扬１煤矿瓦斯微机自动监控系统瓦斯爆炸必须三个条件：①到达瓦斯爆炸浓度（５％～１６％，按体积）；＠空气中有足够的氧（按体积不低于１２％）；＠有火源。预防瓦斯爆炸的技术措施，主要包括两方...
Coal mine gas microcomputer automatic monitoring system Yanzhou Mining Workers University Ma guard Jining Radio Management Committee Zhang Yang 1 coal mine methane automatic monitoring system gas explosion must be three conditions: ① arrived gas explosion concentration (5% ~ 16% by volume); @ air Have enough oxygen (by volume of not less than 12%); @ a source of fire. Technical measures to prevent gas explosion, mainly including two parties ...