Simulation of the relative trajectories with various orbital elements and a qualitative theoretical analysis illustrate the advantages of the orbital elements method.
仿真了各种不同轨道根数下的相对运动轨迹，与定性的理论分析进行比较，说明了轨道根数描述方法的优越性。
This dissertation adopts an integrated method of theoretical analysis and empirical research, qualitative analysis and quantitative analysis.
本文主要采用理论分析和实证研究相结合、定性分析与定量分析相结合的方法。
In the past, the theoretical study was only used as the basis of qualitative analysis but experimental work was the basis of quantitative computation.
过去，理论分析只作为定性分析的依据，而定量计算却是以实验为基础的。
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