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.
由于选题策划人员分布广泛、离散性强，所以很难给出一个精确的在行从业数字。
Precise figures are hard to pin down because publication planning is widely dispersed and is only beginning to be recognized as something like a discrete profession.
通过应用各种编码技术，字位的组合不但可以用来表示二进制数，还可以表示其他离散符号，比如十进制数字和字母表上的字母等。
By using various coding techniques, group of bits can be made to represent not only binary number but also other discrete symbols, such as decimal digits or letter of alphabet.
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