查询词典 solar system

Celestial mechanics: numerical method, N-body simulation; planetary systems: Solar System

天体力学：数值算法，N体模拟；行星系统：太阳系

Based on the fundamental theory of celestial mechanics and the discussion of two body problem under the action of universal gravitation ,the general model which can be continuously used to calculate the apparent place of celestial body in the solar system was derived. Then ,for the specific celestial body ,the material simulating method and the precision verification was given ,and the reason why the error was caused was analyzed and the corresponding method was offered .

摘 要：基于天体力学的基本理论和对万有引力作用下二体问题的讨论，推导出太阳系天体视位置长期计算的一般模型，然后针对特定天体给出了具体的仿真方法和计算结果的精度检验，深入分析了误差的产生原因并提出了相应的改进办法。

The point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars.

天球上的一个点，太阳和月亮构成的系统看上去都在相对于这个点运动。

Because a star is so much more massive than a planet (the Sun, for example, is over a thousand times heavier than Jupiter, the largest planet in our solar system) the centre of mass that they both orbit around is much closer to the star.

因为有如此多的明星更大规模的行星比（太阳例如，有一千倍木星，最大的行星在太阳系）的中心，大众这两个轨道上是非常接近的明星。

Ceres, Pluto, and Eris are members of a new class of solar system objects called dwarf planets.

Ceres ，Pluto和Eris是太阳系一个新的级别的成员，被称为矮行星。

Ceres is the smallest identified dwarf planet in the Solar System and the only one in the asteroid belt.

谷神星，太阳系已知的最小的矮行星，也是唯一位于小行星带的矮行星。

The enstitate ordinary chondrite family formed near the Sun and in the inner solar system.

顽辉石－普通球粒陨石系是在靠近太阳的内太阳系区域形成的关键词：南极陨石，沙漠陨石，球粒陨石，球粒陨石分类

The Solar System orbits the center of the galaxy in a nearly circular orbit.

太阳系轨道中心的银河近圆形轨道。

Normal comets fall into the inner regions of the solar system from icy reservoirs in the distant Kuiper belt and Oort cloud.

通常来说，彗星来自距离遥远且冰天雪地的柯伊伯带和奥尔特星云然后掉入太阳系中的内层区域。

The gas appears to be clumpy, forming thousands of comet-shaped knots each spanning about twice the size of our solar system.

这些氢分子云气的分布不均，聚成了数以千计的彗星状纠结，每一个的大小大约是我们太阳系的二倍大。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。