定义：n个变量X1、X2、···、Xn的最小项是n个因子的乘积，每个变量都以它的原变量或非变量的形式在乘积中出现，且仅出现一次。
n. minterm
misc. lowest term
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为了提高匹配算法的效率，文中用最小项数目作为标签标定变量(变量组)。
In order to improve the efficiency of matching algorithm, the Numbers of minterms connected with every single variable or every variable composition are used as "signature" of the va.
通过对编码器真值表的特点分析，利用卡诺图最小项合并规则得出了直接书写逻辑表达式的具体方法。
Through to the encoder truth table characteristic analysis, has obtained the direct writing logical expression concrete method using the Karnaugh map most minor term merge rule.
本文通过举例分析合并相邻方格最小项的规律、技巧及方法；最后归纳总结用卡诺图简化逻辑函数的方法与步骤。
Karnow's chart is a common using method for simplified logical fUnction, in this paper, the method and steps are obtained by means of the analyses of the practical examples.
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