相对地球表面而言，这颗卫星位置固定。
The satellite remains in one spot relative to the earth's surface.
GPS卫星位置计算是进行GPS导航定位的关键环节，快速准确地计算出卫星坐标，对提高GPS定位精度和速度有着重要意义。
GPS satellite position calculation is the key link of GPS navigation and positioning, calculating satellite coordinates quickly and accurately is important to improve positioning speed and precision.
GPS卫星位置计算是进行GPS导航定位的关键环节，快速准确地计算出卫星坐标，对提高GPS定位精度和速度有着重要意义。
GPS satellite position calculation is the key link of GPS navigation and positioning, calculating satellite coordinates quickly and accurately is important to improve positioning speed and precision.
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