 |
| 全封闭: 148 phrases in 28 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Automobiles | 8 |
| Aviation | 2 |
| Bridge construction | 1 |
| Chemistry | 4 |
| Compressors | 5 |
| Computer numerical control | 1 |
| Cryptography | 1 |
| Drilling | 1 |
| Electric machinery | 19 |
| Electronics | 15 |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 5 |
| Geology | 1 |
| Hydroelectric power stations | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 9 |
| Nautical | 5 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Rail transport | 3 |
| Refrigeration | 10 |
| Scuba diving | 2 |
| Space | 1 |
| Submarines | 3 |
| Technology | 43 |
| Textile industry | 1 |