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| 正交-正交相移键控 (卫星通信中的一种开关式载波调制方式) | |||
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quadrature-quadrature phase shift keying : 44 phrases in 9 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Communications | 2 |
| Electronics | 15 |
| Geophysics | 1 |
| Information technology | 4 |
| Space | 7 |
| Technology | 2 |
| Telecommunications | 10 |
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