In automatic mechanism selection system based on orbit, orbit characteristics and dimension parameters of key orbit segments are momentous for selecting mechanisms.
基于轨迹的机构自动化选型系统中，轨迹特征及关键轨迹段尺寸参数是选择机构的重要依据。
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The results may be of reference value to the design of some parts of the spectrometer and to the selection of launching window for polar orbit meteorological satellites.