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。
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.
其结果可以提供给分光计某些部份的设计以及极轨气象卫星发射时间的选择作参考。
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