月球

There is no air or water on the moon, is there?

月球上没有空气和水，是吗？

Maya also built some astronomical observatory, we can figure out the moon and planets eclipse and operation cycle time.

玛雅人还建造了一些天文观测，我们可以计算出月球和行星的运行周期和月食的时间。

At last, we talked about three problem in precise orbit determination of lunar satellite.

最后一章讨论月球卫星精密定轨中的三个问题。

Furthermore, a strategy of precise orbit determination for lunar satellites is presented, which combines analytical and numerical methods. It is assessed to be reliable and practical.

在此基础上，建立了一种数值方法和分析方法相结合的月球卫星精密定轨方法，并以仿真计算证实了方法的可靠性与应用前景。

Both problems are popular topics in the field of orbit support for space mission.

本文是有关航天工程预研课题中的一部分，以航天器轨道力学为基础，结合一些具体的航天应用背景，对天地基联合定轨方法和月球探测器轨道支持这两个目前航天任务轨道支持的热点问题作了相应的分析和研究。

The errors and area limits caused by the lunar curvature were avoided in this model established under the Selenocentric Orthogonal Coordinate System, the accidental errors of exterior line elements were reduced by orbit fitting and interpolation, the polynomial orders of systematic errors in satellite orbits were decreased with their expression in the flying coordinate system moving and rotating with satellites, and the reliability of exterior orientation solution was enhanced under the condition of sparse and low accuracy control points by appending constraint of orbit and attitude parameters.

该模型通过在月心直角坐标系进行影像空中三角测量来消除月球曲率引起的误差和测图范围限制，通过轨道形状的拟合与插值来减小摄影时刻轨道位置的偶然误差，在飞行坐标系中建立轨道修正模型来减少定向参数的数目，对轨道和姿态增加约束条件来提高月面控制点数目稀少及精度低条件下外方位解算的精度与可靠性。

In the interests of preserving ecological stability, alleviating overcrowding in Otoh Gunga, and fostering peace and goodwill, the Naboo and the Gungans launched an ambitious joint venture to colonize Ohma-D'un, one of Naboo's three moons.

出于对保护生态稳定性，和解决奥托刚嘎城人口密度过大问题的考虑，并且为了促进和平和友谊，纳布人和刚嘎人发起了一项雄心勃勃的合作冒险事业，那就是：开发纳布三个月球之一的欧玛-邓星球。

The outermost region of a planet's atmosphere.

外行星的位置，月球的位置

But WOW, I am absolutely over the moon.

但哇，我绝对超过了月球。

My goal is between 65-70 kilos, if I can get to the 60-65 range, I'll be over the moon.

我的目标是65-70公斤之间，如果我能到60-65范围内，我将在月球。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。