灰色关联分析 grey relational analysis ; GRA ; grey relational model

灰色关联分析法 GRA ; Grey Relational Analysis

灰色层次分析法 GAHP ; Grey ahp ; Grey Analytic Hierarchy Process

灰色层次分析 GAHP

羟基磷灰石层析 hydroxyapatite ; HAP

煤灰成分分析标准物质 Composition of Coal Ash

灰关联分析 gray correlation analysis

灰分析 ash analysis

灰色聚类分析 grey clustering analysis ; grey system clustering analysis ; Gray Cluster Analysis

煤灰成分分析 coal ash analysis ; ash analysis of coal