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.
此产品具有防静电功能好、抽真空效果佳、透明度高、透（氧）气率低、防潮性能好、抗拉强度与耐穿刺强度高、易热封、密封性好、不易老化等特点。
It could be firmly hot sealed and strongly laminated between different layers of material; four cornered solid construction make it also has good function of resistance of the water and oxygen .
此产品具有防静电功能好、抽真空效果佳、透明度高、透（氧）气率低、防潮性能好、抗拉强度与耐穿刺强度高、易热封、密封性好、不易老化等特点。
It could be firmly hot sealed and strongly laminated between different layers of material; four cornered solid construction make it also has good function of resistance of the water and oxygen .
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