灰色聚类评价是环境质量等级研究的一种简单易行的方法。
Grey clustering evaluation is a simple method in grade study of environmental quality.
根据灰色系统理论，建立了计算机软件质量综合评价的灰色聚类模型，为定量确评价软件质量提供了有效的方法。
Based on the Grey system, Grey clustering model of compositive evaluation for computer software quality is put forward, and it provides scientific basis for the quantitative evaluation result.
以灰色聚类为基础，提出了梯形灰色聚类分析法，并将其应用于环境质量评价之中。
Based on the gray assembles, the trapezium gray analysis is presented, and it is applied to environmental quality assessment.
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