The grey prediction model provides a new way for predicting the time dynamic numerical array of mine gas emission rate.

灰色预测模型为矿井瓦斯涌出量时间动态数列的预测提供了一条新的途径。

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The result shows that the average of absolute gas emission rate of the working face closes to the cutting speed of the shearer.

研究表明，工作面瓦斯涌出的总体平均水平与工作面采煤推进速度关系密切。

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The principle of increasing gas emission rate by long hole blasting in the crossing hole is discussed. The radius cracked zone in coal seam caused by long hole blasting is calculated.

简要论述了深孔爆破提高瓦斯抽放的机理，以煤体中柱状装药爆炸后的裂隙圈半径进行了计算。

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Stacking up the numbers, he realised that human activities were adding CO2 to the atmosphere in a quantity and rate equivalent to all natural processes of absorption or emission of the gas.

FORBES: Global Warming Is No Threat?