文章摘要信息 关键词 ： 割缝；网络化；增透；底板穿层；瓦斯抽采 [gap=762]Keywords : slotting；network；permeability increasing；crossing from floor；gas drainage
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为设备进一步优化，提高割缝能力奠定基础。
Optimize further for equipment, raise kerf ability to lay a foundation.
介绍了激光切割筛管的原理和割缝筛管数控激光加工机床；
The laser cutting machines and the principle of slotted screen laser cutting are introduced briefly.
介绍了特大煤样采用水力割缝提高瓦斯渗透率的实验研究。
The testing research about enhancing permeability rate by hydraulic cutting seam on outsize coal sample is introduced.
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