高瓦斯低透性煤层的瓦斯抽放，一直是煤矿安全生产过程中的重大技术难题。
Gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production.
试验结果表明，该方案明显提高了低透性煤层的瓦斯抽放效果。
The result shows that it is a very good path to improve methane drainage effect by using the way and deserves to be popularized and applied.
“卸压增透”技术是提高松软低透气性煤层瓦斯抽采率的有效途径。
"Pressure relief antireflective" technology is to improve the soft low-permeability coal seam gas extraction rate in an effective way.
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