... 变换开关 alternation switch 变换频率 conversion frequency 变换线圈仪表 change-coil instrument ...
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拉普拉斯变换频率响应 Freqs
变换频率响应 freqz
电阻抗变换频率试验 impedance change frequency test
频率变换 [电子] frequency conversion ; [电子] frequency transformation ; frequency change ; [电子] frequency translation
电压频率变换器 voltage to frequency converter ; VFC ; voltage frequency transducer
量子频率变换 quantum frequency conversion
频率变换电路 frequency-conversion circuit ; frequency-conversion
整流子频率变换机 commutator frequency changer
变频器频率变换器 frequency transformer
最常见的数字信号处理技术之一是离散傅立叶变换（DFT），它把一个信号分解成它的组成频率，并表示成一个矩阵。
One of the most common digital-signal-processing techniques is the discrete Fourier transform (DFT), which breaks a signal into its component frequencies and can be represented as a matrix.
当他们把测量结果通过傅立叶变换分解成一组波时，这组波随着频率减小而增幅巨大。
When they turned these measurements into a series of waves using a mathematical trick called a Fourier transform, the waves increased in magnitude as their frequency decreased.
该文从原理上分析了相乘器在频率变换中的应用及过程。
This article analyses the applications and procedures in frequency transformation of multiplier from principle.
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