单词：angular substituents
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And lastly, here's Destin, from Smarter Every Day, 最后是《每天聪明一点点》的德斯丁， talking about the conservation of angular momentum, and, since it's YouTube, cats: 为我们讲述动量守恒，由于是在YouTube上，所以他用
发表于:2018-12-30 / 阅读(421) / 评论(0)
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Itsremarkable how we are able to build up this picture of whats going on millionsof miles away in the solar system. Its one of the joys of science really, justalmost like a detective picking up on those tiny clues to tell a bigger story. Sothat the b
发表于:2019-01-23 / 阅读(360) / 评论(0)
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