The factors affecting explosive limits of city gas are analysed in this paper.
对影响城市燃气爆炸极限的因素进行了讨论。
The relationship between the gas explosive limits and concentrations was studied as air was mixed with water gas.
研究水煤气与空气混合时煤气的爆炸极限与所含各组分浓度之间的关系；
The explosive limits of concentration, explosive morphology, explosive waveforms and their influence factors were investigated.
探索了浓度爆炸极限、爆炸形态与波形及其影响因素；
Moreover, experiments on explosive limits of air that contains methane and oxygen with different percentage of contents were also carried out.
还试验了瓦斯在不同含氧量空气中的爆炸限。
The result shows that the content of combustible gas is far lower than the lower explosive limits and there is no the explosion danger in heating furnace.
研究结果表明，加热炉运行全过程中可燃气体含量较少且远低于烟气混合物爆炸极限，不存在爆炸危险；
The reaction may be explosive outside narrow temperature limits.
在很窄的温度范围以外，反应可能是爆炸性的。
The reaction may be explosive outside narrow temperature limits.
在很窄的温度范围以外，反应可能是爆炸性的。
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