隧道改建工程 meaning in English
tunnel reconstruction work
Examples
- Tianjin metro line 1 adopted this technology in its renovation project of the existing tunnel at the norshwest - southwest corner , and obtained good engineering results
天津市地铁1号线工程西北角西南角既有区间隧道改建工程的围护结构施工中采用了该技术，并取得了良好的效果。