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| 保护频带 | |||
| 防扰频带 | |||
| 防护波段; 两信路间防护频带 | |||
| 防护频带 | |||
| 保护频带 (在两个信道之间保留的空余频带) | |||
| 保护间距; 保护带 | |||
| 保护间隔 | |||
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guard band : 14 phrases in 7 subjects |
| Air defense | 2 |
| Electronics | 1 |
| Exhibitions | 1 |
| Information technology | 3 |
| Space | 3 |
| Technology | 3 |
| Textile industry | 1 |
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