1) large-bore roadways of sub-level
综放大断面巷道
2) 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
3) tunnel with top-coal caving and fully mechanized mining face
综放巷道
4) large section tunnel advance
大断面巷道掘进
5) roadway section
巷道断面
1.
Optimizing roadway section and lifting mine benefit;
优化巷道断面 提高矿井效益
6) two roadways of fully mechanized caving face
综放面两巷
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