【摘要】 本文利用灰色系统理论对六安市洪水发生年份建立了灰色ＧＭ（１．１）预测模型，对防止和减轻洪水灾害有一定的意义。更多还原

【Abstract】 By the theory of the grey system, this article designs the model of the grey GM (1,1) calculation in flood year of Luan City. In certain sense, it will prevent and reduce the flood calamity.更多还原