本文从负数表示的研究引入对称三进制系统与对称三值逻辑。

Symmetric ternary systems and symmetric ternary logic are introduced from the research on the expression of negative Numbers.

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根据有关对称三进制逻辑的资料，结合CMOS电路生产工艺特点，设计并试制了对称三值逻辑CMOS系列电路。

CMOS symmetrical three-valued ternary logic circuit was designed and fabricated, based on the information associated with symmetrical ternary logic combined with CMOS circuit processing features.

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