orbits

Mars, Venus and the other planets move in eccentric orbits.

火星 、 金星及其他行星沿不正圆的轨道运行.

The satellite orbits the Earth every 48 hours.

这颗人造卫星每48小时绕地球运行一周。

The concepts of penetrating and non-penetrating orbits must be modified.

必须修改贯穿式轨道和 非 贯穿式轨道的概念.

The man-made satellite orbits the earth every 48 hours.

那颗人造卫星每48小时绕地球轨道运行一周.

Estimation on the periods and characteristic exponents of the periodic orbits in the vicinity of the equilibrium points in the restricted three-body problem

关于三体问题平衡点附近周期轨道的周期及特征指数的估计

The orbits around the Earth are too valuable to let this happen.

宝贵地球轨道资源,不允许这种事发生.

In fact, the body movement orbits is round as well.

事实上, 身体的运动轨迹也是圆的.

By using the pole shifting technology, the chaotic system, such as the Henon system can converge at its equilibrium or higher order unstable orbits.

对混沌吸引子中的高周期高维动力系统，采用系统控制论中的极点移动技术，成功实现了混沌控制。

Other enumeration problems lead us to the study of orbits of permutation groups.

其它的计数问题引导我们去研究置换群的轨道.

The orbits of such faint asteroids are not yet known.

但是对于这样暗的小行星的轨道,迄今尚未弄清.

According to the stability region theory of constrained dynamic system, the restricted stability boundary is composed of stable manifolds of unstable equilibrium points, periodic orbits and semi-saddles on the boundary, and portions of the boundary of the feasible region.

根据带约束动力系统稳定域理论，其受限稳定边界由边界上不稳定平衡点、周期轨和半鞍点的稳定流形以及部分可行域边界构成。

This classification is the analogy of our previous picture of stable orbits.

这种区分类似于前面的稳定轨道图形.

Chen said the new launch vehicle is designed mainly to reach orbits of about 300-500 km above Earth's surface, and can meet the need for "fast, reliable and inexpensive" launches in future, including carrying personnel for China's space station, as well as materials.

陈洪波表示，这种新型运载器主要是为到达距地约300-500公里的轨道设计的，可满足未来“快速、可靠、廉价”的发射需求，包括为我国空间站运输人员、物资。

The planets occupy orbits that are regularly spaced according to a pattern first noticed by Bode.

行星动行的轨道在空间的位置是有一定规则的,波特首先注意到了这种规律性.

There are about 800 comets whose orbits are known.

人类已经知道有运行轨道的彗星大约有800颗.

Mars and Earth have orbits which change with time...

火星与地球的运行轨道随着时间而变化。

But they can attain more distant orbits.

但是它们也可以到达更远的轨道。

They knew each other by sight, but their orbits did not touch.

他们见面认识, 但各自的生活圈子互不搭界.

The Earth orbits in an ellipse.

地球轨道呈椭圆形。

Vibration analysis of inclined orbits tram based on MATLAB

基于MATLAB的倾斜轨道缆车振动分析

The ranges of change of the configurations and positions of orbits in general three-body problem

一般三体问题中轨道形状和位置的变化

In numerical integrations for 107 yr, it showed that those stable orbits are connected with the 2:1 resonance.

在对系统长达107年数值积分中，发现所有的稳定轨道均与2：1共振相关联。

As a companion star orbits its primary , it alternately approaches and recedes from the Earth.

当伴星围绕着主星运转时, 它交替地朝着地球或背离地球运转.

His two eye orbits were dark black.

两个眼眶，都围着一圈黑线。

The mission of preliminary orbit design for Sun Synchronous and other typical orbits can be achieved by the designer. Compared with the satellite tool kit ( STK) software, the result of the designer was validated.

该设计器能够实现太阳同步轨道等典型轨道的初始轨道设计任务，通过与卫星工具软件（STK）设计结果的比较，验证了设计器的正确性。

All the orbits lie nearly in the same plane.

所有物体的轨道几乎都在同一平面上.

But repeated orbits around the Milky Way stripped away most of its membership.

但是重复绕银河系轨道运动让它失去了大部分的恒星成员。

They knew each other by sight, but their orbits not touch.

他们彼此面熟，但没有接触往来。

Mars and Earth have orbits which change with time

火星与地球的运行轨道随着时间而变化。

They spin like fiery planets lots from their orbits.

他们象离开了轨道,冒着火的星球那样旋转.