“神州7号”的三名宇航员今天(星期五)凌晨在抵达距离地球343公里的最终轨道后开始执行任务。
The three-man crew of the Shenzhou (" sacred vessel ") Seven settled into their duties after reaching their final orbit 343 kilometers above the Earth earlier today (Friday).
由于钡星系统是由普通红巨星双星系统演化而来，因此钡星系统的轨道偏心率及周期的分布显示了经过质量吸积后双星系统的最终轨道特征。
As Ba star systems are evolved from G-K star systems, the distribution of orbital eccentricities and periods of Ba stars can show the final orbital character of binaries.
它是如何达到这一规模，它是如何演变直到形成最终的轨道？
How did it reach that size, how did it evolve and so much about its final orbit?
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