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earth and moon meaning in English

地球和月球

Examples

  1. As another example the center of mass of the earth and moon moves in an approximately circular orbit around the sun .
    作为另一个例子,地球和月亮的质心就是在一个绕太阳的近似的圆轨道上运行。
  2. The tides are a fight between the earth and moon . all water tends towards the moon , because there is no water in the moon , and nature abhors a vacuum
    月亮比太阳用处大,因为月亮在晚上发光,你需要;而太阳在白天发光,你根本不需要。
  3. Parallax is a geometric effect : at the surface of the earth we are offset from the line through the centers of earth and moon , and because of this we can observe a bit ( about 1 ) more around the side of the moon when it is on our local horizon
    视差是几何学的效果:在地球的表面,我们透过地球和月亮的中心被从线弥补,而且因为这当它在我们的当地地平线上的时候,我们能观察一点在月亮的边周围的更多。
  4. Selecting the image elements of earth and moon centers as observed quantity , measurement noise model and observed equations of autonomous navigation system are built up . the spacecraft orbit is determined by using the recursive weighted least square based on ud factorization
    在奔选取地心和月心像素作为观测量,建立了符合实际情况的量测噪声模型和自主导航系统的观测方程,并利用基于ud分解的递推加权最小二乘算法估计了奔月探测器的轨道参数。

Related Words

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  11. earth and environmental sciences
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