Exothermic oxidation of coal is the main cause of spontaneous combustion.
煤的氧化放热是引起煤自燃的主要原因。
Spontaneous combustion of coal is an extremely complicated physical chemistry process and the moisture is the important factor of the influence of coal oxidation.
煤炭自燃是一个复杂的物理化学过程，煤的水分是影响氧化进程的重要因素。
The thermal analysis was used to study the oxidation and thermal degradation reaction of coal with different oxidation degrees of coal.
用热分析手段研究了不同煤化程度煤的氧化热解反应。
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