短語詞組短語high frequency gain control 高頻增益控制variable frequency generator control 可變頻率發(fā)生器控制器frequency interference control 頻率乾擾控制frequency response control 頻率響應(yīng)控制intermediate frequency gain control 中頻增益控制frequency alias control system 頻率控制方式frequency tracking control 頻率跟蹤控制Frequency Interfernce Control 頻率乾擾控制variable frequency electrical control 變頻電控 返回 frequency control