In view of the uncertainty of indexes for evaluating water quality the entropy value theory is applied to combine with fuzzy matter-element method to establish an entropy fuzzy matter-element model.
鉴于水质评价中各指标的不确定性和模糊性，将熵值理论与模糊物元建模相结合，应用于水质综合评价中，建立了基于熵权的模糊物元模型。
However, an evaluated method of fuzzy matter-element is presented because the concepts of polluted extent, polluted range and damaged extent themselves are fuzzy.
但因污染程度、污染范围和危害程度等概念本身存在着模糊性而难以处理，于是提出了模糊物元评价法。
Regarding this situation, the author here is trying to apply matter-element assessment method and fuzzy mathematical comprehensive assessment method to assess narrow channel manoeuver safety.
本文针对目前这种状况从安全评价的角度，应用可拓物元和模糊数学评价的方法对狭水道操纵安全进行评价。
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