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Terms for subject Air defense containing double-channel | all forms | exact matches only | in specified order only
| English | Chinese |
| double channel duplex | 双信通道双工 |
| double channel simplex | 双信通道单工 |
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| English | Chinese |
| double channel duplex | 双信通道双工 |
| double channel simplex | 双信通道单工 |