 |
| 保护气体: 283 phrases in 22 subjects |
| Automobiles | 14 |
| Aviation | 9 |
| Bridge construction | 1 |
| Chemistry | 13 |
| Compressors | 5 |
| Construction | 1 |
| Electric machinery | 10 |
| Electronics | 10 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 7 |
| Hydroelectric power stations | 4 |
| Metallurgy | 92 |
| Nautical | 12 |
| Oil / petroleum | 17 |
| Pipelines | 1 |
| Plastics | 1 |
| Rail transport | 6 |
| Shipbuilding | 5 |
| Space | 12 |
| Steel production | 2 |
| Technology | 58 |
| Wind Energy | 2 |