droughts旱灾
droughtn.干旱
Drought period count in design电力设计中枯水期的计算
drought and freezing tolerance耐旱抗寒
drought degree for agriculture农业干旱程度
Drought area of Jianghuai Hill剂量-反应线
drought resistance coefficient抗旱系数
drought disater control forest防旱林
drought extent for agriculture农业干旱程度
drought and flooding disasters旱涝气候灾害