该算法提高了网络性能，在煤与瓦斯突出强度预测中取得良好效果。
It is concluded that GA-BP compound algorithm has improved the performance of ANN and good results nave bee obtained in coal and gas outburst intensity forecast.
构造煤分子间的作用力小，决定了构造煤强度低和吸附性能高，从而控制了煤与瓦斯突出灾害的发生；
The intermolecular force of deformed coal is relatively small, the deformed coal has low strength and high adsorption capacity, and those determine the outbreak of coal-gas outburst.
随着矿井开采水平的延伸，开采强度的提高，煤与瓦斯突出危险程度也在不断增加；
This paper points out that the danger of coal and gas outburst is greatly increasing along with the depth of the coal seam and the intensity of the coaling.
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