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F 开头的英语单词（共 143,619 个）
frequency deviation of vision carrier
[通信] 图像载频的偏差
frequency device
频率敏感器件
frequency diagram
响应频率图
frequency dial
频率度盘
frequency dictionary
频率辞典
frequency difference
[电] 频率差
frequency directing
[电子] 频率引导
frequency directing device
[电子] 频率引导装置
frequency discontinuity
频率突变,频率中断
frequency discrimianator
[电] 鉴频器
frequency discriminating receiver
[电讯] 鉴频式接收机
frequency discrimination
[计] 鉴频
frequency discriminator
[电] 频率鉴别器
frequency dispersion
频(率分)散
frequency distortion
[计] 频率失真
frequency distribution
[化] 频数分布\n[经] 频率分布
frequency distribution curve
[经] 频率分布曲线
frequency distribution histogram
频度分佈直方图