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| 信号 装置: 248 phrases in 21 subjects |
| Aviation | 5 |
| Communications | 2 |
| Electrical engineering | 1 |
| Electronics | 15 |
| Firefighting and fire-control systems | 5 |
| Forestry | 2 |
| General | 103 |
| Geophysics | 1 |
| Hydraulics | 1 |
| Information technology | 1 |
| Military | 6 |
| Nautical | 7 |
| Nuclear and fusion power | 1 |
| Oil and gas | 1 |
| Oil processing plants | 4 |
| Rail transport | 6 |
| Security systems | 2 |
| Space | 2 |
| Technology | 81 |
| Telecommunications | 1 |
| Thermal engineering | 1 |
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