图书馆的朝向为北，可以接收更均匀的光线。
The library is oriented to the north to achieve a more uniform light.
发光均匀，光线柔和，无眩光，无光斑。
Even and soft light radiation, no glaring and no lighting spot.
特点：照射面积大，光线分布均匀。
Characteristics: large area irradiation and equal ray distribution.
特点：照射面积大，光线分布均匀。
Characteristics: large area irradiation and equal ray distribution.
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