大巷 meaning in English
main entry
Examples
- Improvement of heading conveying system in 630 south roadway
630南大巷掘进输送系统的改造 - Design optimization of bolting in soft wall roadway
应用锚杆支护动态信息设计法加固运输大巷 - The design of automatic air door in trackless main haulage roadway
无轨运输大巷的自动风门设计 - Supporting patterns of main roadway when passing soft seam and rock
大巷过软煤岩段支护方式探讨 - Fast driving method of west main return air roadway in shihe mine
寺河矿井西总回风大巷快速施工法