The effect of rate of change for semimajor axis and inclination perturbation and drift of semimajor axis and inclination on the ground-track drift was analyzed.
分析了半长轴和倾角摄动变化率，以及初始半长轴和倾角偏置量对地面轨迹漂移的影响。
Correction for drift caused by the adoption of rifling in big guns was approximated by inclination of the rear sight bracket.
并且靠稍微偏移后瞄准座来修正大型火炮因膛线所带来的偏流。
Correction for drift caused by the adoption of rifling in big guns was approximated by inclination of the rear sight bracket.
并且靠稍微偏移后瞄准座来修正大型火炮因膛线所带来的偏流。
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