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转播 : 202 phrases in 16 subjects |
Antennas and waveguides | 1 |
Astronautics | 1 |
Aviation | 6 |
Business | 4 |
Education | 6 |
Electronics | 1 |
General | 98 |
Genetics | 1 |
Informal | 1 |
Information technology | 2 |
Military | 3 |
Radio | 6 |
Rail transport | 3 |
Shipbuilding | 1 |
Technology | 66 |
Telecommunications | 2 |