frequency-controlled thyristor motor ==> 频率控制闸流晶体管电动机
frequency controller ==> 频率调节器
frequency conversion ==> 变步,频率转换
frequency-conversion crystal ==> 变频晶体
frequency conversion effect ==> 变频效应
frequency converter ==> 变频器,变频机
frequency-converter ==> 变频器
frequency converter of laser radiation ==> 激光辐射变频器
frequency converter set ==> 变频机组
frequency converter substation ==> 变频站
frequency converter tube ==> 变频管
frequency convolution theorem ==> 频率卷积定理
frequency correction ==> 频率校正
frequency corrector ==> 频率校正器
frequency counter ==> 频率计
frequency counting ==> 频率计数
frequency crossing ==> 频率交叉
frequency curve ==> 频率曲线
frequency cutoff ==> 频率截止
frequency decay ==> 频率下降,频率衰减
frequency deceleration ==> 频率减慢
frequency demodulation ==> 频率解调,鉴频
frequency demodulator ==> 频率解调
frequency demultiplication ==> 分频
frequency demultiplier ==> 降频器,分频器
frequency density ==> 频率密度
frequency dependence ==> [与]频率相关
frequency detection ==> 频率检波
frequency detector ==> 检频器
frequency deviation ==> 频率偏移,频移,频差
frequency device ==> 频率敏感元件
frequency diagram ==> 频率图,频率图解
frequency difference ==> 频差
frequency-difference detector ==> 频差检波器
frequency difference resonance ==> 频差共振
frequency discontinuity ==> 频率突变
frequency discriminating circuit ==> 鉴频电路
frequency discriminating optical chopper ==> 鉴频光学限制器
frequency discrimination ==> 鉴频
frequency-discrimination ==> 频率鉴别
frequency discrimination telegraph ==> 鉴频式电报
frequency discriminator ==> 鉴频器
frequency dispersion ==> 频散
frequency distortion ==> 频率失真,频率畸变
frequency distrbution ==> 频率分布
frequency distribution ==> 频率分布,频数分布,次数分布
frequency-distribution curve ==> 频率分布曲线
frequency distribution table ==> 频数分布表
frequency diversity ==> 频率分集
frequency diversity radars ==> 频率分集雷达
frequency divider ==> 分频器
frequency divider stage ==> 分频级
frequency dividing circuit ==> 分频电路
frequency dividing ratio ==> 分频比
frequency division ==> 分频,频率划分
frequency-division audiometer ==> 分频听力计
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