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                          漂亮的至夏手抄报 立夏手抄报图片

                          整理:老师板报网   时间:2018-05-07   评论:   图片数:1P    漂亮的至夏手抄报 立夏手抄报图片

                          漂亮的至夏手抄报 立夏手抄报图片

                            立夏是农历二十四节气中的第7个节气,夏季的第一个节气,表示盛夏时节的正式开始,太阳到达黄经45度时为立夏节气。斗指东南,维为立夏,万物至此皆长大,故名立夏也。

                            节气起源

                            立夏这个节气在战国末年(公元前239年)就已经确立了,预示着季节的转换,为一年四季之夏季开始的日子。

                            实际上,若按气候学的标准,日平均气温稳定升达22℃以上为夏季开始,“立夏”前后,我国只有福州到南岭一线以南地区是真正的“绿树浓阴夏日长,楼台倒影入池塘”的夏季,而东北和西北的部分地区这时则刚?#25112;?#20837;春季,全国大部分地区平均气温在18~20℃上下,正是“百般红紫斗芳菲”的仲?#27721;?#26286;春季节。进入了五月,很多地?#20132;?#33457;也正开。立夏时节,万物繁茂。


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                          漂亮的至夏手抄报 立夏手抄报图片评论
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                                                  双色球最新200期走
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