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地球的自转运动与公转运动有许多有趣的规律,其中之一就是具有对称性。了解与把握了关于对称性的规律,对解答有关地球运动的许多问题有重要作用。本文将从空间对称性和时间对称性两个方面讨论其中的一些规律。一、空间对称性1.关于赤道对称的两点
There are many interesting laws about the Earth’s rotation and revolution. One of them is symmetry. Knowing and grasping the law of symmetry plays an important role in answering many questions about the earth’s movement. This article will discuss some of these rules from two aspects: the space symmetry and the time symmetry. First, the spatial symmetry 1. Two points about the symmetry of the equator