Digital systems use signals, which are of pulse form, that is, a series of short-duration square waves.

数字系统使用信号脉冲形成的，也就是说，一系列的短周期平方波。

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Digital systems use signals, which are of pulse form, that is, a series of short-duration square waves.

数字系统使用信号脉冲形成的，也就是说，一系列的短周期平方波。

youdao