The seasonal difference in sunshine duration was evident, and decreasing amplitude in season was winter, summer, autumn and spring in turn.
日照时数季节差异较为明显，趋势明显程度依次为冬季>夏季>秋季>春季；
The seasonal difference in sunshine duration was evident, and decreasing amplitude in season was winter, summer, autumn and spring in turn.
日照时数季节差异较为明显，趋势明显程度依次为冬季>夏季>秋季>春季；
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