A predication model of greysystem was proposed for ob servation of Grey change with the model the monthly meansediment runoff and the yearly mean sediment precipitation could be predicated.是什么意思_A predication model of greysystem was proposed for ob servation of Grey change with the model the monthly meansediment runoff and the yearly mean sediment precipitation could be predicated.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句