 |
| 不燃的: 74 phrases in 16 subjects |
| Agriculture | 1 |
| Architecture | 3 |
| Automobiles | 9 |
| Aviation | 5 |
| Electronics | 2 |
| Explosives and Explosive Ordnance Disposal | 3 |
| General | 12 |
| Hydroelectric power stations | 1 |
| Metallurgy | 8 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Project management | 1 |
| Refrigeration | 1 |
| Space | 10 |
| Technology | 15 |