3) large rock-gateway
大断面岩巷
1.
achieved the footage above 1200m/a in large rock-gateway shingle-entry developing in 2005,which put down a base for steady development of mine.
开滦(集团)有限责任公司2005年实现了大断面岩巷单头掘进年进尺超过1200m的水平,为矿井的稳步发展奠定了基础。
2.
Achieved the footage above 1200m/a in large rock-gateway shingle-entry developing in 2005, whick put down a base for steady development of mine.
开滦(集团)有限责任公司2005年实现了大断面岩巷单头掘进年进尺1200m的水平,为矿井的稳步发展奠定了基础。
4) large-scale roadway
大断面巷道
1.
Hybrid evaluation on large-scale roadway s stability under complex and cracked condition;
复杂破碎围岩状态下大断面巷道稳定性综合分析
5) gob-side entry retaining with large section
大断面留巷
补充资料：异形断面钢材(见异形断面型材)
异形断面钢材(见异形断面型材)
special section steel
，一、u以uu、’“飞豆on gQngC01异形断面钢材(speeial Seetion steel)见异形断面型材。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条