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频 偏 : 183 phrases in 22 subjects |
| Air defense | 18 |
| Automobiles | 2 |
| Aviation | 6 |
| Business | 2 |
| Communications | 3 |
| Corporate governance | 2 |
| Electronics | 22 |
| General | 8 |
| Geophysics | 5 |
| Hydroelectric power stations | 2 |
| Information technology | 4 |
| Metallurgy | 3 |
| Multimedia | 1 |
| Nautical | 1 |
| Oil / petroleum | 8 |
| Piezoelectric crystals | 5 |
| Securities | 1 |
| Shipbuilding | 2 |
| Space | 31 |
| Statistics | 1 |
| Technology | 36 |
| Telecommunications | 20 |
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