推导了协议地球坐标系下的卫星运动方程。
The equation of satellite orbital motion was derived in the conventional terrestrial coordinate system.
地理和投影坐标系都包含对地球形状的假设(一个略扁的球体)；这称为大地基准点。
Both geographic and projected coordinate systems include a definition of the assumed shape of the earth (a flattened sphere); this is called the geodetic datum.
在Spatial extender术语中，这是SpatialReferenceSystem (SRS)，它组合了基于地球的坐标系和一组数字转换参数。
In the terminology of the Spatial Extender, this is the Spatial Reference system (SRS), a combination of an earth-based coordinate system and a set of numeric conversion parameters.
重力探测器B也证实了“坐标系拖曳效应”，地球的旋转使时空产生扭曲。
The satellite also confirmed the frame-dragging effect, in which the rotating Earth twists the surrounding spacetime.
同时还研究了在球坐标系下弹性应变张量与复数矢量球函数的一些关系，为地球弹性动力学方程的解算提供参考。
The solution of the Earth elastic dynamical equations can be also referred to some relations of complex vector spherical harmonic functions to the elastic strain tensor in spherical coordinates.
卫星精密定轨中，需要计算天球坐标系(CRF)到地球固联坐标系(TRF)之间的转换。
For precise satellite orbit determination, the transformation should be done between the Celestial Reference Frame (CRF) and the Terrestrial Reference Frame (TRF).
中国大地坐标系的定义，与国际地球参考系的定义一致。
The definition of the China Geodetic Coordinate System 2000 is identical with that of the International Terrestrial Reference System.
中国大地坐标系的定义，与国际地球参考系的定义一致。
The definition of the China Geodetic Coordinate System 2000 is identical with that of the International Terrestrial Reference System.
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