Terms for subject Desert science containing relation

English	Chinese
contact relation	接触关系
curvilinear relation	曲线关系
food relation	食物关系
public relations for disaster prevention	防灾宣传
race relations	种族关系
rainfall runoff relation	降雨径流关系
stage discharge relation	水位流量关系
water-soil-plant relation	水-土-植物关系