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| 频带〔波段〕扩展〔展宽〕 | |||
| 波段展宽; 波段展开; 频带展宽; 波带扩展; 调谐范围扩展 | |||
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bandspread : 3 phrases in 2 subjects |
| Technology | 2 |
| Telecommunications | 1 |
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