短語詞組短語constant -frequency oscillator [電]恒定頻率振蕩器;恒定頻率振蕩器unified constant -frequency 定頻the constant switching frequency 固定的開關(guān)頻率constant ratio frequency changer 定比變頻器Constant WidthConstant Frequency 恒寬恒頻dielectric constant -frequency 介頻譜constant switch frequency 恒定開關(guān)頻率 返回 constant frequency