variable voltage
| variable frequency
| variable voltage | |
| auto. | 可变 电压 |
| met. | 可变电压 |
| variable frequency | |
| geophys. | 可变频率 |
| |||
| 可变调电压 | |||
| 可变电压 | |||
| 可调电压 | |||
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variable voltage : 68 phrases in 19 subjects |