地心赤道座标轴
geocentric equatorial coordinate axes
地心黄道坐标轴
geocentric ecliptic coordinate axes
黄道座标
ecliptic coordinates
ecliptic system of coordinates
黄道座标系
ecliptic system of coordinates
地道黄芪
Milkvetch Astragalus membranaceus
地黄标准提取物
Standard extract from Radix Rehmanniae
地心地固坐标系
ahead thrust
ECEF coordinate system
earth-centered earth-fixed(ECEF) coordinate system
earth-centered and earth-fixed(ECEF) coordinate system
earth centered earth fixed
ECEF
质心座标
center of mass coordinate