文章针对公交客运班线开通时出现的状况区分不确切、边界不清楚的情况，引入了模糊聚类分析方法，将模糊情景问题进行了定量化和数学化。
In this paper, we will bring fuzzy clustering analyse into a kind of investment decisions in fuzzy conditions, and provide a quantitative and mathematical method to solve such questions.
（传票送达后，被告有权在一定期限内对原告的申请提出答辨。 ）“a certin period of time（一定期限内）”是不确切的时间，是模糊表达。
After service, the defendant is entitled to a certain period of time within which to file his pleading, or answer, to plaintiff's petition.
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