 |
| |||
| voltage fluctuation | |||
| voltage variation | |||
| undulating voltage | |||
| voltage hunting | |||
| voltage pulsation | |||
| 电压波动: 18 phrases in 12 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Communications | 2 |
| Electric machinery | 2 |
| Electronics | 3 |
| General | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Space | 1 |
| Technology | 2 |
| Telecommunications | 1 |