Planetary orbit defends 行星轨道防守
inclination of planetary orbit 行星轨道倾角
orbit of planetary motion 天体运行轨道
Formation Around Planetary Displaced Orbit 行星悬浮轨道附近的编队
2262 - Planets gradually changing planetary orbit. Mars is threatened by comets.
2262年,行星们逐渐转变了自己的旋转轨道,火星被彗星威胁。
The orbit of Venus, the 2nd planet outward form the sun, comes closer to Earth than any other planetary orbit.
金星的轨道,围绕太阳外运行的第二颗行星,它比任何其它的行星轨道都靠近地球。
Kepler went on to show that an elliptical orbit is sufficient to explain the movement of the other planets and to devise the laws of planetary motion that Newton built on.
接着开普勒证明了这个椭圆轨道也能很有效解释其他行星的运行轨迹。 然后他提出了行星运动定律,牛顿定律就是以此为理论基础的。
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