| |||
dual-control | |||
duplex control | |||
duplicate control | |||
dual control | |||
double control (自动和人工); dual operation (自动和人工) | |||
dual operation | |||
| |||
dual control | |||
| |||
dual operation |
双重 控制: 7 phrases in 5 subjects |
Construction | 1 |
Drilling | 1 |
Refrigeration | 1 |
Technology | 3 |
Textile industry | 1 |