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      d region是什么意思

        作者:恒星英语学习网     所属分类:D开头的英语单词     

      d region 是什么意思

      中文翻译与英英解释

      气象学 D 区离地球表面约60到90公里高度处的电离层最低部分
      d:    短语和例子 CD 400. DC 600.
      region:    n. 1.地方地域地带地区行政区管辖区区左 ...

      例句与用法

      1.The space - time distribution of chinese semi - ari d region surface water is n ' t even , the differences in a year are obvious ; the differences of underground water between years are not so obvious as surface water , but it still has a decreasing tendency , especially in shanxi and sha ' anxi provinces . there is a significant linear correlation between the precipitation and water resources in semi - arid region , the dynamic regularity of water resources is basically same as the dynamic regularity of precipitation
      半干旱地区地表水资?#35789;?#31354;分布不均匀年内分配差别大地下水资源年?#22987;?#21464;化?#20160;?#22823;但总体有减少的趋势尤以陕西和山西突出半干旱地区降水量与水资源量线性相关显著降水量的变化规律基本上与水资源量的变化规律吻合

       
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