Gray relate的用法和样例：
例句
- Gray correlation theory and stomach content method were used to build the relationship between the distributions of zooplanktons and Pacific saury.
分别利用灰色关联和胃含物法对其与秋刀鱼渔场分布之间的关系进行了探讨。 - The model adopts the analytic hierarchy process method to determine the weight of each index, and appraises the customer value by gray relational analysis method.
模型对传统的灰色关联法进行改进，采用层次分析法给指标赋权，使指标权重更科学合理。
