main voltage
| selector
| main voltage | |
| IT | 电源 电压 |
| selector | |
| CNC | 选择开关 |
| hockey. | 挑边器 |
| manag. | 挑选人; 选拔者 |
| met. | 选择器; 调谐旋钮; 波段开关 |
| |||
| 电源〔干线，供给〕电压 | |||
|
main voltage : 8 phrases in 5 subjects |
| Aviation | 2 |
| Hydroelectric power stations | 1 |
| Nautical | 1 |
| Shipbuilding | 1 |
| Technology | 3 |