“Orbit coordinate system”的概念、定义、翻译、参考文献-科学参考

单词	Orbit coordinate system
释义	Orbit coordinate system Encyclopedia 工学参考框架释 Orbit coordinate system轨道坐标系统以地球质心为原点，Z轴指向瞬时天极方向，X轴指向历元时刻的平春分点在瞬时赤道面上的投影方向（实为瞬时真赤道上的某一个假想的春分点），Y轴与X轴和Z轴正交，从而构成的右手笛卡儿直角天球坐标系。
随便看	Abel crater Abel criterion Abel curve theorem Abel differential equation Abel-Dini theorem Abel duplication formula abele Abel ergodic theorem Abel functional equation Abel-Galois theorem Abel-Goncharov problem Abel Hermant Abelian abelian Abelian algebra Abelian category Abelian crystal Abelian difference set Abelian differential Abelian differential form Abelian differential of the first kind Abelian differentials of the second and third kinds Abelian differentials of the second kinds Abelian differentials of the third kinds Abelian equation

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