Calamity forecast

• 灾变预测

Calamity forecast的用法和样例：

例句

1. The forecast model is set up by using the grey-theory,and the particular years of severe calamities in China are forecasted and analysed.
   利用灰色系统理论和方法建立灾变预测模型，对中国重灾出现年份作出预测分析。