本文对密近双星演化研究的历史和现状作了简要的回顾和概括。
In this thesis, We have made a recapitulation about the studies in the history and the current state of the close binary evolution.
在总结前人工作的基础上，提出了密近双星演化链研究中有待进一步研究的问题。
And on the basis of the previous work, the difficulties in studying the evolutionary links are presented.
更讽刺的是，这个毁灭性的行星对撞，很可能也是行星系统有可能在密近双星周围形成的首个间接证据。
Ironically, this indirect evidence of a destructive planetary collision could also be the first indication that planetary systems can form around close binary stars.
更讽刺的是，这个毁灭性的行星对撞，很可能也是行星系统有可能在密近双星周围形成的首个间接证据。
Ironically, this indirect evidence of a destructive planetary collision could also be the first indication that planetary systems can form around close binary stars.
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