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次 谐波 : 168 phrases in 22 subjects |
| Air defense | 10 |
| Architecture | 1 |
| Aviation | 5 |
| Chemistry | 1 |
| Construction | 3 |
| Earth sciences | 1 |
| Electric machinery | 22 |
| Electronics | 39 |
| General | 8 |
| Geophysics | 1 |
| Hydroelectric power stations | 4 |
| Information technology | 2 |
| Mathematics | 4 |
| Metallurgy | 10 |
| Nautical | 1 |
| Oil / petroleum | 4 |
| Radio | 2 |
| Rail transport | 3 |
| Space | 5 |
| Technology | 36 |
| Telecommunications | 4 |
| Wind Energy | 2 |
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