The sun's newfound neighbor and five other supercool brown dwarfs belong to a class of failed star called Y dwarfs.

为太阳新发现的这个邻居和其他五个超冷褐矮星都属于一个称为“Y矮星”的系列，是“不成功”的恒星。

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In the third chapter, we study mainly iterative roots of piecewise homeomorphic maps of an Y-star.

在第三章，我们主要研究了Y星上逐片同胚映射的迭代根的问题。

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Oh, my y friend, do you like stars? If you feel lonely far away from home, look up at the stars in the sky, where there is a star for luck that I've send you.

朋友，你喜欢星空吗? 有一天你在远方流浪时感到孤独、忧郁，请抬头看看星空，那儿有我送给你的幸运星。

youdao

You can see that we have two unpaired electrons in this molecule here one in the pi 2 p x star, and one in the pi 2 p y star orbital.

你们可以看到我们这个,分子力有两个未配对电子,一个在π2px星，一个在π2py星轨道。

麻省理工公开课 - 化学原理课程节选

So we're going to call this the sigma 2 p x star, or if we're talking about the 2 p y orbitals we'll call this the pi 2 p x star, and the pi 2 p y star.

我们叫这个sigma2px星，或者如果我们说的是π2py轨道的话,我们叫这个2px星，这个π2py星。

麻省理工公开课 - 化学原理课程节选

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Y-class star, at least from a spectroscopic point of view.

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