stellar evolution

Stellar rotation is a difficult problem of the theory of stellar structure and evolution.

恒星的自转，是恒星结构和演化理论的难点。

In the first introductory part it is pointed out that the main difference among current theories of stellar evolution is in the evolutionary stage after stars move onto the main sequence.

在第一部分引言中，说明现代恒星演化学说的分歧主要是在恒星形成主序星以后的演化。

An understanding of the stellar energy sources is still more vital for the problem of stellar evolution.

弄清恒星的能源对恒星演化的研究是更为关键的问题。

The star rotation is a difficult problem in the theory of the stellar structure and evolution.

恒星的自转,是恒星结构和演化理论的难点.

Our understanding of cosmology, galaxies and planetary formation all depend on stellar evolution.

我们对于宇宙学，星系和行星形成的了解也全部都需要恒星演化的理论。

Considering the heavy element diffusion, it could perfect the stellar structure models. It is important to study the physical problems about the stellar structure and evolution not only for low-mass stars but also for all the stars.

考虑了重元素扩散效应之后可以使恒星的结构演化模型更加完善，这不仅对小质量恒星的研究有重要的影响，同时对研究整个恒星结构演化中的物理问题也具有一定的意义。

A supernova is the last stage of stellar evolution, and is a violent astrophysical phenomena.

超新星是恒星演化的最终阶段, 是最激烈的天体物理现象.

According to the stellar evolution theory, in approximately 4.5 billion years, the sun will become a giant red star, its distance to Earth will shrink, all liquids will evaporate, and possibly the sun will absorb Earth.

根据恒星演化理论，在大约45亿年之后，太阳将变成一个巨大的红色星球，它和地球的距离会缩小，所有的液体会蒸发掉，可能太阳会吞噬地球。