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等太阳高度线图判读的基本内容有:太阳直射点的地理坐标;太阳高度的分布规律、正午太阳高度的分布规律;地方时、北京时间的计算;正午太阳高度大小的计算;昼夜长短的变化;推断与图示时间相关的日期(节气)、季节及地理现象等。等太阳高度线图可以看作是以太阳直射点为中心的
The basic contents of the interpretation of the solar altitude map are: the geographical coordinates of the direct sun point; the distribution of the sun’s height, the distribution of the height of the sun at noon; the calculation of local time and Beijing time; the calculation of the size of the solar noon at noon; ; Infer dates related to the illustrated time (daylight), seasons and geographical phenomena. The solar height map can be seen as centered on the direct sun point