经常说「可以把太阳光看作平行光」,但自然中不存在平行光。那么太阳光角度是多�?是测量出来的还是计算的? 知乎 Template




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tomski经常说「可以把太阳光看作平行光」,但自然中不存在平行光。那么太阳光角度是多�?是测量出来的还是计算的? 知乎 coloring