This kind of gate circuit can be used in forming 4 value combination logic circuit and order part logic circuit, it also can be combined with DYL series circuits.

这类门电路可以用于构成四值组合逻辑电路和时序逻辑电路，也可以和DYL系列电路配合使用。

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To shorten the distance between theory and practice, improve the ability of flexible application of digital components, logic circuit design is proposed combination of the fifth step.

为缩短理论与实践的距离，提高灵活应用数字元器件的能力，提出了组合逻辑电路设计的第五步。

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