subastral

常见例句

• Expatiated on the application theory of basic orbit, including subastral point calculation, visibility analysis, coverage evaluating and spacecraft life-span estimate.4.
  3、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。
• subastral point
  星下点
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