... 弹道，轨迹 trajectory 轨道估计，轨道测量 trajectory estimation 弹道测量 trajectory measurement ...
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结果表明，两种自主导航方法的轨道估计精度满足深空巡航段的要求。
The estimation accuracy of the orbit is demonstrated to meet the requirement of the deep space cruise phase.
研究表明更高的温度估计依据于温室排放在本世纪将继续沿着现行的轨道继续下去的预测。
The study's higher temperature estimate is based on the idea that greenhouse emissions will continue along the current trajectory through the century.
即使宇宙中还有很多别的恒星系，能够恰好处在足以支持生命的轨道的行星估计也寥寥无几。
Even if many other stars have solar systems too, planets that happen to orbit in just the right place to support life could be pretty rare.
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