它可以精确到偏心率和倾角差的一阶项， 而且不再包括长期误差。
The solution is accurate to first order in the eccentricity and inclination difference and including no long term errors.
在长期操作中，使仪表的误差减至最小。
Minimize drift of the instrument during prolonged operation.
并运用EG两步法建立二者之间的误差修正模型，得出了进口对经济增长的短期和长期作用。
The Error Correction Model between them is built by EG two-step method with the correlative long-term effect and short-term effect on import.
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