Furthermore, gray relationship analysis is done to the structure of total value, and some finer results are gained.

此外，对总值构成进行了灰色关联分析，得到一些好的结果。

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The relationship between organic matter decomposition and environmental or biological elements were analyzed with gray relationship analysis method.

采用灰色关联分析，使有机物分解与环境、生物因素的关系量化和序化，进行比较和分析。

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Then based on relationship analysis, the gray decision-making tree method is proposed, and its decision-making steps are presented in detail.

然后基于关联分析，提出了灰色决策树的模型，并给出了其决策的详细步骤。

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