Research proved that the most important factors are the elevation Angle of the sun and the structure of canopy.
研究表明对果树冠层光合影响最大的因子是太阳高度角和果树的冠层结构。
System directly calculate any point at a given moment in the sun elevation Angle, solar azimuth, solar declination Angle, the day of sunshine, year round sunshine and average annual sunshine time.
系统直接计算出任意一点在给定时刻的太阳高度角、太阳方位角、太阳赤纬角、当天日照时间、全年日照时间以及年平均日照时间等。
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