查询词典 elliptic orbit

The chaotic planar motion of rigid spacecraft on an elliptic orbit in the gravitational field with air drag and internal damping and its control are investigated.

研究万有引力场中受大气阻力且存在结构内阻尼的非自旋航天器在椭圆轨道上平面天平动的混沌及其参数开闭环控制问题。

It's a central sun, with circling a planet around it in a elliptic orbit.

这是中央的太阳，与盘旋在椭圆轨道围绕它的行星。

The cause of the earth tide force is its elliptic orbit movement. There is the tide caused by the earth on the moon because the earth is the focus of the moon moving orbit, but there is not the tide caused by the moon on the earth because the moon is not the focus of the moving orbit of the seawater on the earth.

地球的潮汐力是由椭圆轨道运动产生的，由于月球的轨道运动是以地球为焦点，所以在月球上可以产生受地球影响的潮汐，而不可以产生相反的潮汐，因为海水或岩浆没有以月球为焦点的轨道运动。

For spaceborne Synthetic Aperture Radar, Dopplcr property is one of the most important factors for azimuth performance. In this paper, the elliptic orbit is applied.

摘要在星载合成孔径雷达中，多普勒特性是决定雷达方位向性能的主要因素，对它的正确估计将影响到雷达的性能和最后成像的精度。

The attraction of the other planets could then explain the deviation of the motion of the planet from the elliptic orbit.

其它行星的吸引可以用来解释行星运动椭圆轨道的偏离。

This formation clearly depicts the elliptic orbit of a celestial body around the sun: we can conclude this from the fact that the sun is far out of the centre of the planetary orbit.

这形成清楚地描绘了一个围绕太阳天体椭圆轨道：我们可以得出一个事实，就是太阳，远远超出了行星轨道的中心这一点。

In the critical manoeuver, the orbit for Chandrayaan-1 was once again raised on Tuesday morning and now it is orbiting in an elliptic orbit which will take it right upto the moon.

在关键manoeuver ，轨道为月球- 1 ，再次提出星期二早上，现在是绕在一个椭圆轨道将采取正确达月球。11月8日，这是可能达到月亮的晚上。

The simulation results verify the validity of the present approach. The conclusion has no restriction on the eccentricity of the initial elliptic orbit, and fits for the situation of initial elliptic orbit with large eccentricity.

数值仿真表明：所提出的方法能够确切描述卫星可达范围的边界，所得结论对初始椭圆轨道的偏心率没有限制，可以用于单颗卫星机动范围的评估和不同卫星间安全距离的设计。

Elliptic orbit ; Tetrahedron configuration ; Formation flying ; J2 perturbation ; Orbit optimization design

椭圆轨道；四面体构形；编队飞行； J2项摄动力；轨道优化设计

To understand the hyperbolic motion of the probe and give necessary orbit information not only the discrete positions to both ground-base or satellite autonomy device, we studied the variation of hyperbolic orbit and gave the variation equations like that of elliptic orbit.

这段轨道相比其它段虽然很短，但却是实现最终探测目标的关键弧段。为了更好地了解探测器的在这一关键弧段的运行状态，给地面测控系统或是星上自主设备提供必要的轨道信息，而不仅仅是探测器在一些孤立点上的位置和速度，有必要对双曲线轨道及其变化特征进行研究，给出类似于椭圆轨道及其变化的一些基本规律。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。