An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 9 Search : reference
 cross reference   بازبرد ِ دوسویه، ~ چندسویه   bâzbord-e dosuyé (#), ~ candsuyé (#)Fr.: référence croisée   Reference from one part or element of a book or data catalog to something in another for further information.→ cross; → reference. frame of reference   چارچوب ِ بازبرد   câcub-e bâzbordFr.: système de référence   A set of axes to which positions and motions in a system can be referred.→ frame; → reference. Galilean reference frame   چارچوب ِ بازبرد ِ گالیله‌ای   cârcub-e bâzbord-e Gâlile-yiFr.: référentiel galiléen   Same as → inertial reference frame.→ Galilean; → reference; → frame. inertial reference frame   چارچوب ِ بازبرد ِ لختی‌ناک، ~ ~ لختی‌مند   cârcub-e bâzbord-e laxtinâk, ~ ~ laxtimandFr.: référentiel galiléen   A → reference frame or coordinate system in which there are no accelerations, only zero or uniform motion in a straight line. According to the special theory of relativity, it is impossible to distinguish between such frames by means of any internal measurement.→ inertial; → reference; → frame. preference   بهزونه   behzunéFr.: préférence   1) Act of → preferring. 2) That which is preferred.→ prefer; → -ence. reference   بازبرد   bâzbord (#)Fr.: référence   1) An act or instance of referring. 2) A book, article, or passage to which one is directed.Verbal noun of → refer. reference ellipsoid   بیضی‌وار ِ بازبرد   beyzivâr-e bâzbordFr.: ellipsoïde de référence   A mathematically defined surface that approximates the Earth's shape, which is basically a sphere "flattened" at its poles. The length of one of the axes at the Equator is chosen so that the ellipsoid coincides at this latitude with the mean sea level. It is the first-order definition of the non-spherical shape of the Earth as an ellipsoid of revolution. To first order, it accounts for over 90% of the → geoid.→ reference; → ellipsoid. reference frame   چارچوب ِ بازبرد   cârcub-e bâzbordFr.: système de référence   A set of axes to which positions and motions in a system can be referred. Same as → frame of reference.→ reference; → frame. reference source   خن ِ بازبرد   xan-e bâzbordFr.: source de référence   An astronomical source in a field used as a reference for the detection of another object, astrometry, etc.→ reference; → source.