 |
| 挖沟: 317 phrases in 25 subjects |
| Agriculture | 18 |
| Architecture | 3 |
| Automobiles | 1 |
| Aviation | 1 |
| Bridge construction | 2 |
| Chemistry | 2 |
| China | 1 |
| Construction | 3 |
| Consulting | 1 |
| Desert science | 2 |
| Drilling | 3 |
| Ecology | 2 |
| Electronics | 4 |
| Engineering geology | 11 |
| Exhibitions | 1 |
| Explosives and Explosive Ordnance Disposal | 4 |
| Forestry | 1 |
| General | 9 |
| Hydraulics | 1 |
| Hydroelectric power stations | 11 |
| Metallurgy | 4 |
| Navigation | 1 |
| Oil / petroleum | 23 |
| Technology | 207 |
| Telecommunications | 1 |