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drought degree中文是什么意思

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用"drought degree"造句"drought degree"怎么读"drought degree" in a sentence

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  • 干旱等级

例句与用法

  • The computed palmer drought index of 124 stations in the north of china are used to analyse some charactersin this region , including the main drouthy years and its severity , the drought range , etc . . we also analyse the main drouthy periods , the frequency of each drought degree , the main area and the drought cycle in northwest china , north china and northeast china . on the base of the further modification of palmer drought severity model , a daily palmer drought severity model are developed . lt indicated that the daily drought index is accordant with the monthly drought index , and can reflect the change of severity in detail
    应用进一步修正的帕默尔旱度模式计算的我国北方地区124个站点的40年逐月旱度值,分析了我国北方地区的一些干旱特征,包括北方地区旱情较重的大旱年及其严重程度、主要干旱区;华北、西北和东北地区各等级干旱发生频率、主要干旱时段、干旱周期等,为防旱抗旱提供了科学依据。
用"drought degree"造句  
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