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| 天波传播的多跃; 多次跳跃电波的多次反射 | |||
| 多次反射 | |||
| 电波传播多次反射; 微波系统多次接力; 分组网多次转发 | |||
| multihop: 13 phrases in 6 subjects |
| Communications | 1 |
| Computer networks | 1 |
| Information technology | 1 |
| Space | 1 |
| Technology | 1 |
| Telecommunications | 8 |
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