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载频 : 316 phrases in 26 subjects |
| Agriculture | 1 |
| Air defense | 33 |
| Automobiles | 3 |
| Aviation | 25 |
| Communications | 1 |
| Computer networks | 3 |
| Construction | 3 |
| Earth sciences | 1 |
| Economy | 1 |
| Electric machinery | 2 |
| Electronics | 64 |
| General | 8 |
| Geophysics | 5 |
| Information technology | 13 |
| Metallurgy | 2 |
| Oil / petroleum | 7 |
| Piezoelectric crystals | 4 |
| Project management | 1 |
| Radio | 2 |
| Rail transport | 1 |
| Shipbuilding | 9 |
| Space | 27 |
| Technology | 76 |
| Telecommunications | 22 |
| Textile industry | 1 |
| United Nations | 1 |
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