英语语法分析

In molecular orbital theory, we named orbits based on their symmetry.

在分子轨道理论中，我们基于轨道的对称性给它们命名。

The main axis of the planet's orbital ellipse shifts each time when it goes around the sun.

当行星绕太阳运行时，其轨道椭圆的主轴每次都会改变。

Newton for years had been curious about the cause of the orbital motion of the moon and planets.

多年来，牛顿一直对月球和行星绕轨道运行的原因感到好奇。