Bessel point

例句：

1. 1.The Bessel point is a critical location in the solar system.
   贝塞尔点是太阳系中的一个关键位置。
2. 2. The Bessel point is often used as a reference point for navigation.
   贝塞尔点常被用作导航的参考点。
3. 3. The Bessel point is also known for its unique magnetic field.
   贝塞尔点也以其独特的磁场而闻名。