这些照片都是在太阳动力学观测站上拍摄到的，它目前是研究太阳这个天体中，最先进的航天器。
The pictures were taken by the Solar Dynamics Observatory (SDO), which is the most advanced spacecraft ever designed to study the Sun.
发射硬x射线调制望远镜，研究致密天体和黑洞强引力场中物质动力学和高能辐射过程。
It plans to launch a hard X-ray modulation telescope to study the matter dynamics and high-energy radiation processes in the strong gravitational field of compact celestial bodies and black holes.
自由基分子及分子离子光谱在天体演化、化学反应动力学、医学等方面具有重要意义。
Free radicals and molecular ions play an important role in the study of interstellar medium, chemical reaction dynamics and medicines.
由此，论文主要研究内容如下：首先，建立了天体及航天器轨道动力学模型。
Thus, the main contents of this thesis are organized as follows: First of all, the orbit dynamic model about celestial bodies and the spacecraft is established.
主要课程包括：静力学，动力学，动力学系统，天体力学，压力和故障，电磁学。
This includes instruction in statics. kinetics. dynamics. kinematics. celestial mechanics. stress and failure. and electromagnetism.
双重星系或天体系统，用动力学方法测定其质量时，观测到的视向速度和距离间距，都是各自值的投影值，可用统计方法，求出一个关于它们的平均投影因子。
Both of the observed radial velocity and separation being projective values, in order to determine the mass of binary galaxies the average projection factor may be derived by a statistical method.
双重星系或天体系统，用动力学方法测定其质量时，观测到的视向速度和距离间距，都是各自值的投影值，可用统计方法，求出一个关于它们的平均投影因子。
Both of the observed radial velocity and separation being projective values, in order to determine the mass of binary galaxies the average projection factor may be derived by a statistical method.
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