 |
| |||
| nested design | |||
| 套 设计: 27 phrases in 14 subjects |
| Agriculture | 1 |
| Aviation | 1 |
| Business | 2 |
| Consulting | 1 |
| Drilling | 1 |
| Economy | 1 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 3 |
| Mathematics | 2 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Space | 1 |
| Technology | 10 |