alternating frequency
| time domain method
| alternating frequency | |
| el.mach. | 交变频率 |
| time domain method | |
| comp., net. | 时域理论 |
| el. | 时域法 |
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| 交变频率 | |||
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alternating frequency : 11 phrases in 3 subjects |
| Electric machinery | 6 |
| Electronics | 2 |
| Geophysics | 3 |