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| 多单元天线 | |||
| multiple antenna: 38 phrases in 11 subjects |
| Air defense | 5 |
| Aviation | 2 |
| Communications | 1 |
| Construction | 2 |
| Electronics | 6 |
| Geophysics | 1 |
| Information technology | 3 |
| Oil / petroleum | 3 |
| Space | 5 |
| Technology | 9 |
| Telecommunications | 1 |
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