difference frequency
短语词组
- difference -frequency distortion [电子]差频失真
- difference of frequency 频率差
- relative difference on frequency [测]频率相对误差
- nonlinear difference -frequency 非线性差频效应
- allowable difference of frequency 周波数许容偏差
- Difference -frequency Detection 频差检测
- phase difference high frequency protection 相差高频保护 返回 difference frequency