| |||
double-channel | |||
dual channel; binary channels | |||
| |||
two-channel | |||
| |||
twin-channel |
双信道 : 39 phrases in 10 subjects |
Air defense | 6 |
Aviation | 5 |
Cryptography | 1 |
Electronics | 4 |
Engineering geology | 1 |
Information technology | 5 |
Metallurgy | 1 |
Space | 5 |
Technology | 9 |
Telecommunications | 2 |