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| infrared communications | |||
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| infrared communication | |||
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| infrared communication | |||
| 红外通信: 23 phrases in 11 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Business | 1 |
| Electronics | 4 |
| Information technology | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Space | 3 |
| Technology | 6 |
| Telecommunications | 2 |
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