In may, he said, miners were dismayed to discover that 59 mules had died from unventilated mine gas.

他说，五月份矿工们很沮丧地发现，有59头骡子在没有通风的矿井里死了。

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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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Based on the system safety engineering theory and the characteristic of mine gas explosion, the safety assessment of mine gas explosion was studied.

运用系统安全工程原理结合煤矿瓦斯爆炸的特点，对煤矿瓦斯爆炸的安全性评价作了初步的研究。

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Private equity backed 2Co wants to build a new coal plant above the Hatfield coal mine and pump the gas to North Sea oil fields where it can be used for enhanced oil recovery.

BBC: Carbon dioxide from industry could be buried offshore

They are encouraging drillers to use tainted coal mine water to hydraulically fracture gas wells in the Marcellus Shale formation, with the twin goals of diverting pollution from streams and rivers that now run orange with mine drainage and reducing the drillers' reliance on fresh sources of water.

WSJ: Pa. pushes drillers to frack with coal mine water

This is the same gas responsible for recent coal mine accidents, and it can infiltrate the water reservoir if there is too much pumping, which creates a pressure draw down.

FORBES: Slurring Natural Gas With Flaming Faucets And Other Propaganda