本文运用模糊数学理论，提出一种利用既有工程数据库设计隧道围岩支护系统的“模糊类比”方法。

Based on fuzzy sets theory and tunnelling data bank, a fuzzy analogy method for design of rock support system in tunnelling is presented in this paper.

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利用模糊集与模糊逻辑可以对类比对象间的有条件性相似关系做合理的数学描述，准确确定类比的条件规则。

Fuzzy set and fuzzy logic can rationally make mathematical description of the conditional similarity among the analogical objects and correctly determine the rule of the analogy.

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