sidereal clock

例句：

1. 1. The sidereal clock is used to measure the time between two events on the same day.
   日心时钟用于测量两个事件在同一天之间的时间。
2. 2.The sidereal clock is crucial for understanding the Earth's rotation and its effects on our daily lives.
   日心时钟对于理解地球的旋转及其对我们日常生活的影响至关重要。
3. 3. In ancient times, people relied on the sidereal clock to navigate their way through the night sky.
   在古代，人们依靠日心时钟来导航穿越夜空。