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duplexed system | |||
duplex system | |||
dual transmission | |||
dual system | |||
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duplex system |
双重系统: 18 phrases in 11 subjects |
Advertising | 1 |
Air defense | 1 |
Automobiles | 1 |
Aviation | 2 |
Economy | 1 |
Electronics | 1 |
Navigation | 1 |
Project management | 1 |
Racing and motorsport | 1 |
Space | 2 |
Technology | 6 |