An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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two-body system
  راژمان ِ دو جسم  
râžmân-e do jesm
Fr.: système à deux corps  

A → dynamical system consisting of two masses that interact via → central forces.

See also: → two; → body; → system.