天球地平圈

例句：

1. 1. The Earth's axis is tilted at an angle of approximately 23.5 degrees relative to the plane ofthe ecliptic.
   地球的轴线相对于黄道面的角度大约为23.5度。
2. 2. Due to the tilt of the Earth's axis, the Northern Hemisphere experiences summer and winter in a different sequence than the Southern Hemisphere.
   由于地球轴的倾斜，北半球和南半球的季节变化顺序不同。
3. 3. The tilt of the Earth's axis affects the length of the day and night, as well as the timing of seasons.
   地球轴的倾斜影响了白天和黑夜的长度，以及季节的开始和结束。