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| 21. | beam rider type |
| 波束制导式 |
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| 22. | coded radio beam |
| 编码无线电波束 |
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| 23. | variable elevation beam |
| 可变仰角波束 |
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| 24. | Beam conical angle |
| 波束圆锥角 |
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| 25. | antenna beam compression |
| 天线波束压缩 |
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| 26. | beam deviation loss |
| 波束偏移损耗 |
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| 27. | antenna beam axis |
| 天线波束轴 |
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| 28. | parabolic beam transmission |
| 抛物面波束传输 |
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| 29. | beam controlling computer |
| 波束控制计算机 |
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| 30. | rotating beam transmitter |
| 旋转波束发射机 |
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