历元 meaning in English
[天文学] epoch
◇历元平极 mean pole of the epoch
Examples
- Champ gravity field recovery based on variance component estimation
建筑物振动变形监测中的单历元算法研究 - Determining attitude with single epoch gps algorithm and its precision analysis
单历元定向和测姿算法及其精度分析 - Mean pole of the epoch
历元平极 - Enter the desired final epoch in the lower portion of the dialog , then click the calculate button to display the coordinates precessed to the final epoch
在下边的“最终坐标”对话框中输入你想得到的历元，并点击“计算”来显示坐标进动。 - Enter the desired final epoch in the lower portion of the dialog , then click the calculate button to display the coordinates precessed to the final epoch
在下面的窗口输入你想要的得到的标准历元，然后点击计算，这样就能够显示你想要得到的历元坐标。