This provides the theoretical criteria and practical data for the productive department to divide the area of spontaneous combustion of coal seams.
这为生产上查明煤层自燃范围提供了理论和实际依据。
The geological environment is very fragile, with shortage of groundwater, critical spontaneous combustion of coal seams and large distribution of burn rock in mining area.
矿区地质环境脆弱，地下水资源贫乏，煤层自燃严重，火烧岩广泛分布。
Spontaneous combustion of coal seams is a complicated physical-chemical and environmental process and the result of integrated action of many kinds of internal causes and external conditions.
煤层自燃是一个复杂的物理、化学和环境作用过程，是多种内在原因和外在条件综合作用的结果。
There are more than 56% of mines in our country exist seams spontaneous combustion danger, seams spontaneous combustion fire serious influences coal safety production.
我国有56%以上的矿井存在煤层自然发火危险，煤炭自燃火灾严重影响煤炭的安全生产。
And he also explained the exterior influence factors of the coal seams spontaneous combustion by analyzing the ventilation, the rain fall, the air temperature and the digging.
通过对通风、降雨、气温、挖掘等的分析，论述了煤层自燃的外部影响条件。
To solve the problem of spontaneous combustion in coal seams, the cutting - off of air leakage and oxygen supply can get twice the results with half the effort.
要解决煤层自燃问题，破坏其漏风供氧环境能收到事半功倍的效果。
To solve the problem of spontaneous combustion in coal seams, the cutting - off of air leakage and oxygen supply can get twice the results with half the effort.
要解决煤层自燃问题，破坏其漏风供氧环境能收到事半功倍的效果。
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