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transmit and receiver |
收发报 : 41 phrases in 15 subjects |
Air defense | 2 |
Automobiles | 1 |
Aviation | 4 |
Business | 3 |
Earth sciences | 2 |
Economy | 1 |
Electronics | 1 |
General | 4 |
Project management | 1 |
Remote sensing | 2 |
Shipbuilding | 1 |
Space | 2 |
Sports | 3 |
Technology | 12 |
Telecommunications | 2 |