名词
中文翻译：双体问题
同义词：
['Two-body problem', 'two-body system', 'two-body problem in physics']
例句：
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1. Thetwo-body problem is a fundamental issue in the study of planetary mechanics.
双体问题是天体物理学研究中的一个基本问题。
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2. In the two-body problem, the orbital elements are determined by the masses and distances between the two bodies.
在双体问题中，轨道元素由两个物体之间的质量和距离决定。
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3.The two-body problem has been studied extensively in the field of celestial mechanics.
在天文学领域，双体问题得到了广泛的研究。