名词
中文翻译：开普勒体系
同义词：
["Kepler's laws", "Kepler's system", "Kepler's laws of planetary motion"]
例句：
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1. The Kepler system is a set of mathematical equations that describe the movement of planets.
开普勒体系是一套描述行星运动的数学方程。
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2. Kepler's laws were discovered by the famous astronomer Tycho Brahe.
开普勒定律是由著名的天文学家Tycho Brahe发现的。
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3. Kepler's system has been used to explain the motion of planets and stars for centuries.
开普勒体系被用来解释数百年来的行星和恒星的运动。