竖井开挖 meaning in Chinese
shaft excavation
Examples
- Excavation blasting of gate shaft for a pumping energy - accumulated power station in luotian
抽水蓄能电站闸门竖井开挖爆破 - Shaft excavation and lining construction in shisanling pumped storage power station
十三陵抽水蓄能电站竖井开挖及衬砌施工