本文建立了分析粘弹流体平面流的基本方程，并采用摄动法和加权余量法。
Fundamental equations for the analysis of plane flow of elastic-viscous fluid are established.
分析和讨论了月亮摄动力对卫星自主导航的影响，给出了其影响的变化规律。
We analyze and discuss moon's impacts on satellite, and give its change rule.
分析和讨论了月亮摄动力对卫星自主导航的影响，给出了其影响的变化规律。
We analyze and discuss moon's impacts on satellite, and give its change rule.
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