Determining the oblateness is extremely difficult.

测量扁率是极为困难的。

The changes of optimal trajectory caused by Earth's oblateness are computed.

详细计算分析了地球扁率对最优轨道的影响。

Titan's oblateness may also help explain why its methane lakes are concentrated near the poles.

泰坦的扁圆形也可以帮助解释为什么它的甲烷湖集中在极地附近。

The result suggests that the oceanic mass redistribution can partly explain the abnormal variation of the Earth's oblateness from 1998.

通过比较，可以看出，海水质量变化可以部分解释1998年以来地球动力学扁率的异常变化。

The reason of attitude correction of scanning infrared horizon sensor is presented by reason of Earth's oblateness and infrared radiation.

分析得出地球扁率和红外辐射是扫描式红外地平仪测量误差的主要原因。