constancy of heater motion

例句：

1. 1.The constancy of the stars in the sky is truly mesmerizing.
   夜空中恒星的恒定性令人着迷。
2. 2.The constancy of the sun's position in the sky has been studied for centuries.
   太阳在天空中位置的恒定性已经研究了几个世纪了。
3. 3. The constancy of the weather patterns across different regions is a fascinating topic.
   不同地区天气模式的恒定性是一个引人入胜的话题。