 |
| |||
| 波段转换 | |||
| 波段变换 | |||
| |||
| 无线电控制波段开关 | |||
| 转换开关 | |||
| 波段转换 | |||
| 波段开关 | |||
| 波段转换开关; 波段选择器; 换波带 | |||
| 磁鼓选区开关 | |||
|
band switching : 7 phrases in 5 subjects |
| Electronics | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 2 |
| Telecommunications | 2 |
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