parallax of the moon

用法例句

The Shicha of lunar eclipse is a difference between moments of full moon and middle eclipse.

通过构造月食时差算法的理论模型,证实月食时差算法是必要的,中国古代历法中设计的月食时差算法应该与月亮视差无关,由此反驳了朱载堉对《纪元历》等历法中的月食时差算法的批评。

Based on the concept and main functions of lunar rovers,system design including composition of subsystems,operational states and modes is analyzed and investigated.

简要回顾月球探测的发展现状,给出月球巡视探测器的概念和主要功能,据此分析和研究系统方案设计、分系统组成、工作状态和工作模式。

The lunar exploration mission requires a long-range autonomous navigation of lunar rover,heading information is an important part of lunar rover navigation,its precision will affects the localization precision and the performance of navigation directly,especially for long range,long duration traverse on the moon.

月球巡视探测器自主导航是其能在月面执行探测任务的关键,而定向又是月球巡视探测器自主导航的一个重要组成部分,其定向精度将直接影响到月球巡视探测器定位性能。

The significance of lunar rover localization is introduced first,and the corresponding limitations of all localization algorithms are indicated by analyzing the lunar environment.

介绍了月球巡视探测器进行定位的目的及意义。