adit
美 ['ædɪt]英 ['ædɪt]
- n.【矿】横坑;入口
- 网络坑道口;平硐;平洞
复数:adits

2
4
5
6
7
9
Underground Excavation Conversion Technology for Entering Main Construction through Subway Large Adit
10
11
12
14
18