单词：angular metrology
[计量] 角度计量学
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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(377) / 评论(0)
TED演讲科技篇
TED演讲科技篇
RACHEL MARTIN, HOST: Astronomers are building the world's largest digital camera to capture images of the night sky. This thing is two stories tall, a scientific marvel. So of course NPR's science correspondent Joe Palca traveled to California to che
发表于:2019-01-16 / 阅读(351) / 评论(0)
2017年NPR美国国家公共电台11月
2017年NPR美国国家公共电台11月
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(336) / 评论(0)
探索与发现2014年
探索与发现2014年