天体力学

This book tells about the celestial mechanics , and it is over my head

这本书讲的是天体力学，我看不懂。

It is an ancient celestial mechanics in the solution of the problem extensively and it is difficult.

它是天体力学中古老的且又很难解的问题。

An important part of celestial mechanics.

天体力学的重要内容之一。

Mapping approach has been widely used in celestial mechanics to study the long-term dynamical evolution of conservative systems.

映射方法在天体力学保守系统的动力演化研究中有广泛的应用。

Celestial mechanics enables astronomers to calculate the position of the planets at any time in the past or future.

天体力学能使天文学家计算出行星在过去或将来任何时候的位置。

Singular perturbation theory and method for solving nonlinear problems is an important tool on the origin of celestial mechanics and nonlinear vibration problems,and its advantage is enough to give the right solution for structural analysis.

奇异摄动理论和方法是求解非线性问题的重要工具，它起源于对天体力学和非线性振动问题的研究，它的优点是能够给出足够正确的解的解析结构。

Determinations based on celestial mechanics provide the constraints on the variation of G of/Go ≤ 10E-12/year.

基于天体力学的测定证明了 G 值变化的约束为/Go ≤ 10E-12/年。

Based on the theory and method of classical celestial mechanics and orbit dynamics of the artificial earth satellite, we need not to start the research from the every beginning.

经典天体力学和人造地球卫星轨道力学都形成了完整的理论体系与研究方法。

Celestial mechanics enables astronomers to calculate the positions of the planets at any time in the post or future and to predict the movements of comets.

天体力学使文学家能计算出行星在过去或将来任何时候的位置，并能预报彗星的运行位置。

See [90]. The theoretical work by these mathematicians supplied many of the ideas and approaches that were later used in more applied situations in physics, celestial mechanics, chemistry, biology, and other fields.

这些数学家的理论工作提供了很多思想和方法，这些后来都被应用于物理、天体力学、化学、生物学和其它领域更为复杂的情形。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。