日-地系统的另一特点是二分点和二至点沿轨道逐渐前行。

日-地系统的另一特点是二分点和二至点沿轨道逐渐前行。的英文翻译

基本释义

• Another characteristic of the sun-earth system is the gradual procession of the equinoxes and solstices along the orbit.