spring north造句

In this paper , the spatial and temporal distribution of the summer rainfall of north china and the sea - ice extent of north arctic are firstly analyzed , by the way of svd we also analyze the correlation distribution pattern of the spring north arctic sea - ice and the summer rainfall of china , and find out that the key section of north arctic sea - ice is the greenland sea , then the climate characteristics of the spring greenland sea - ice are analyzed , at last we have discussed the infection of the spring greenland sea - ice on the summer rainfall of north china and its possible ways
本文首先分析了华北夏季降水和北极海冰面积的时空变化特征，并通过svd方法分析了春季北极海冰面积与中国夏季降水的相关分布型，确定出北极海冰的关键区格陵兰海，然后分析了春季格陵兰海冰变化的气候特征，最后讨论了春季格陵兰海冰对华北夏季降水的影响及其可能影响途径。
It's difficult to find spring north in a sentence. 用spring north造句挺难的