 |
| 接地系统: 97 phrases in 19 subjects |
| Air defense | 3 |
| Aviation | 3 |
| Chemistry | 1 |
| Communications | 1 |
| Earth sciences | 1 |
| Electric machinery | 10 |
| Electronics | 26 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Hydroelectric power stations | 11 |
| Information technology | 2 |
| Nautical | 1 |
| Rail transport | 5 |
| Shipbuilding | 2 |
| Space | 1 |
| Technology | 21 |
| Telecommunications | 2 |
| Wind Energy | 3 |