Under the roof we put the half cylinder inclined at the same angle and above the center of the cylinder, the top light is set where the time can be told through the position of the line.
屋顶之下的半圆柱体也做了相同角度的倾斜，在圆柱中心的上方设置了天窗，通过光线的位置可以知道时间。
Under the roof we put the half cylinder inclined at the same angle and above the center of the cylinder, the top light is set where the time can be told through the position of the line.
屋顶之下的半圆柱体也做了相同角度的倾斜，在圆柱中心的上方设置了天窗，通过光线的位置可以知道时间。
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