Fauve博士的地心模型是一个50厘米长的圆柱形容器，里面装有液态钠。
Dr Fauve's model of the Earth's core was a cylindrical tank some 50cm long filled with liquid sodium.
目前的一些地心坐标向大地坐标的转换模型在计算速度，稳定性或精度方面存在一定的局限性。
At present, there is certain localization in some formulae of transformation from geocentric coordinates to geodetic coordinates, such as rate of calculation, stability, or precision.
根据GPS导航和SINS导航的基本关系，在地心地固坐标系下建立了完整的深层全组合导航系统的数学模型。
According to the basic theory of GPS navigation and SINS navigation, the comprehensive mathematic models of integrate navigation system is built under Earth Center Fixed coordinate system.
在相对运动模型研究方面，基于卫星在地心惯性系下二体模型，推导了卫星精确相对运动模型。
In relative kinematical model research aspects, based on the two body model of the satellite in earth-centered inertial frame, the precision relative kinematical model of satellite is presented.
在相对运动模型研究方面，基于卫星在地心惯性系下二体模型，推导了卫星精确相对运动模型。
In relative kinematical model research aspects, based on the two body model of the satellite in earth-centered inertial frame, the precision relative kinematical model of satellite is presented.
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