本文对渔业产量的比较原理、比较条件及比较方法进行了探讨，提出了以等价系数作为纽带的虚拟产量评价方法。
The article is based on study about comparable principle, comparable condition, comparable method. It suggests the subjunctive output evaluation method at the bridge of equal value coefficient.
该方法利用相似系数在各构件的耐久性指标序列之间进行相似性度量，并形成了具有分类功能的模糊等价矩阵。
The method measures the similarity of durability index series of components by the use of similarity coefficient and forms a fuzzy equivalence matrix with sort function.
更适用与航空、邮政、保险等价格实惠，安全系数高。
More applicable to aviation, postal services, insurance price benefits, high safety factor.
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