ترجمة وتحليل الكلمات عن طريق الذكاء الاصطناعي ChatGPT
في هذه الصفحة يمكنك الحصول على تحليل مفصل لكلمة أو عبارة باستخدام أفضل تقنيات الذكاء الاصطناعي المتوفرة اليوم:
- كيف يتم استخدام الكلمة في اللغة
- تردد الكلمة
- ما إذا كانت الكلمة تستخدم في كثير من الأحيان في اللغة المنطوقة أو المكتوبة
- خيارات الترجمة إلى الروسية أو الإسبانية، على التوالي
- أمثلة على استخدام الكلمة (عدة عبارات مع الترجمة)
- أصل الكلمة
%ما هو (من)٪ 1 - تعريف
![The ECEF coordinates (x, y, z) shown in relation to [[latitude]] and [[longitude]]](https://commons.wikimedia.org/wiki/Special:FilePath/Ecef coordinates.svg?width=200 "The ECEF coordinates (x, y, z) shown in relation to [[latitude]] and [[longitude]]")
![Pages from 1550 ''Annotazione'' on Sacrobosco's ''[[De sphaera mundi]]'', showing the Ptolemaic system.](https://commons.wikimedia.org/wiki/Special:FilePath/1550 SACROBOSCO Tractatus de Sphaera - (16) Ex Libris rare - Mario Taddei.JPG?width=200 "Pages from 1550 ''Annotazione'' on Sacrobosco's ''[[De sphaera mundi]]'', showing the Ptolemaic system.")
![This drawing from an [[Iceland]]ic manuscript dated around 1750 illustrates the geocentric model.](https://commons.wikimedia.org/wiki/Special:FilePath/Geocentrism.jpg?width=200 "This drawing from an [[Iceland]]ic manuscript dated around 1750 illustrates the geocentric model.")
![The basic elements of Ptolemaic astronomy, showing a planet on an [[epicycle]] with an eccentric deferent and an [[equant]] point. The Green shaded area is the celestial sphere which the planet occupies.](https://commons.wikimedia.org/wiki/Special:FilePath/Ptolemaic elements.svg?width=200 "The basic elements of Ptolemaic astronomy, showing a planet on an [[epicycle]] with an eccentric deferent and an [[equant]] point. The Green shaded area is the celestial sphere which the planet occupies.")
ويكيبيديا
The Earth-centered, Earth-fixed coordinate system (acronym ECEF), also known as the geocentric coordinate system, is a cartesian spatial reference system that represents locations in the vicinity of the Earth (including its surface, interior, atmosphere, and surrounding outer space) as X, Y, and Z measurements from its center of mass. Its most common use is in tracking the orbits of satellites and in satellite navigation systems for measuring locations on the surface of the Earth, but it is also used in applications such as tracking crustal motion.
The distance from a given point of interest to the center of Earth is called the geocentric distance, R = (X2 + Y2 + Z2)0.5, which is a generalization of the geocentric radius, R0, not restricted to points on the reference ellipsoid surface. The geocentric altitude is a type of altitude defined as the difference between the two aforementioned quantities: h′ = R − R0; it is not to be confused for the geodetic altitude.
Conversions between ECEF and geodetic coordinates (latitude and longitude) are discussed at geographic coordinate conversion.
