Any circuit . //任何电路。 Any circuit will pass a digital signa。 //任何电路可以通过一个特定的数字信号。 Any circuit will pass a digital signa practically undistorted . //任何电路可以几乎无失真地通过一个特定的数字信号。 Any circuit which has a flat frequency response will pass a digital signa practically undistorted . //任何频响平坦的电路可以几乎无失真地通过一个特定数字信号。 Any circuit which has a flat frequency response up to and including F will pass a digital signal practically undistorted . //任何频率上限为F（含F点）频响平坦的电路，可以几乎无失真地通过一个特定的数字信号。
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