| 1. | He is most noted for the creation of the first astronomical theory of the heavenly motions .
他最出名的工作是创立了天体运动的第一个天文学说。 |
| 2. | A movement of super velocity of light of a celestial body that appeared nearby the sun
在太阳旁边出现超光速的天体运动 |
| 3. | The discovery of neptune and pluto proved the importance of the law of universal gravitation
海王星、冥王星的发现，显示了万有引力对研究天体运动的重要意义。 |
| 4. | However the prediction of this model is about as good as the ptolemaic , the copernican model was not commonly accepted at that time
可惜的是，日心说预测天体运动的准确性和地心说只是不相伯仲，并未为当时的人普遍接受。 |
| 5. | This model has been used to describe the space environment of space station and astro motion , include atmosphere model , sun and moon models
该模块用于描述空间站运行的空间环境和天体运动环境，包括大气模型、太阳模型、月球模型。 |
| 6. | This paper studies the perturbation action of celestial bodies movement on the earth from the view of cosmology , and furtherly analyizes the effect of celestial bodies movement on the slope stability on earth surface
从宇宙观角度探讨天体运动对地球的摄动作用，并进而分析天体运动对地球表面边坡稳定的影响。 |
| 7. | Though it should be admitted that with their unaided observations with crude instruments , the astronomers in ancient india were able to arrive at near perfect measurement of astronomical movements and predict eclipses
应当承认，这些古代印度天文学家只用了粗糙的工具进行独立观察，他们得出了接近完美的天体运动结果和预测了日蚀。 |
| 8. | By comparing the computation effects of several common numerical methods ( including symplectic algorithm ) , and considering the nature of the movement of the small in the corresponding treatments are provided here to improve the reliability of the computation
通过对几种常用数值方法（包括辛算法）计算效果的比较，根据小天体运动自身的特性，给出了相应处理措施，从而可提高计算结果的可靠性。 |
| 9. | This paper studies the perturbation action of celestial bodies ' movement on the earth from the view of celestial mechanics , and furthermore analyzes the effect of celestial bodies ' movement on the natural slope stability due to phosphorus ore mining in mountainous areas
摘要针对宜昌磷矿高陡山区地下开采对上部山体稳定性影响，从天体力学的角度探讨天体运动对地球的摄动作用，并分析月球运动的引力对山区磷矿自然坡失稳的影响。 |
| 10. | The asteroids are the most important small bodies in the solarsystem , and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space . the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth , thus they could move into inside of the earth ' s orbit , so that they might close approach or even colliside with the earth ( or other planets , such as the venus , the mars , etc . ) . the characteristic brings about some difficulties in the numerical research during their orbital evolution , which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality . by comparing the computation effects of several common numerical methods ( including symplectic algorithm ) , and considering the nature of the movement of the small bodies , the corresponding treatments are provided here to improve the reliability of the computation
小行星是太阳系最重要的一类小天体，主要分布在两个区域；火星和木星轨道之间的一条主带和近地空间.近地小行星轨道的最大特点是其轨道半长径与地球轨道半长径相近，或近日距离接近甚至小于日地平均距离，其运动可深入到地球轨道的内部，这将导致该类小行星与地球(还有金星、火星等)十分靠近甚至发生碰撞.这一特征给其轨道演化数值研究带来一些困难，包括天体力学方法中一般消除碰撞奇点的正规化处理以及对定性研究十分成功的辛算法都将在不同程度上失效.通过对几种常用数值方法(包括辛算法)计算效果的比较，根据小天体运动自身的特性，给出了相应处理措施，从而可提高计算结果的可靠性 |
