Expatiated on the application theory of basic orbit, including subastral point calculation, visibility analysis, coverage evaluating and spacecraft life-span estimate.
阐述了基本轨道应用分析理论，包括星下点轨迹计算、可见性分析、覆盖评估和轨道寿命估算。
Objectives to make contrast analysis with ultrasonic imaging on eye or orbit tumor and clinical operation as well as pathology, in order to discuss diagnosis value of ultrasonic on eye or orbit rumor.
目的对眼内及眶内肿瘤超声检查与临床手术及病理进行对照分析以探讨超声对眼内及眶内肿瘤的诊断价值。
A new algorithm was developed throw the tailor equation based on the imaging analysis. The new algorithm can supply the high precise attitude data even in the low orbit.
依据成像几何分析通过泰勒展开公式推导并提出了新的姿态角运算方法，保证了低轨道姿态运算精度；
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