单词：globularetin
单词：globularetin 相关文章
节目介绍 经典语境背诵 May: When blackout happened in our community my little brother Daniel couldnt watch his favorite cartoon Ultraman, and my Dad couldnt watch American Idol either. So they would say blackout is a diseaster. But for me it
英语大赢家上册
Listening While Driving Is, What'd Ya Say? A study in the journal Psychonomic Bulletin and Review finds that not only does talking interfere with driving skills, the act of driving makes listening a much harder task. Karen Hopkin reports We all know
60秒科学
F Fangchinoline 防已诺林碱 Farrerol 杜鹃素 Fenugreek P.E 葫芦巴子提取物 Ferulic acid 阿魏酸 Feverfew P.E 小白菊提取物 Fibriuretinin 黄藤素 Flavanols 黄烷醇 Flavonoids 蒲公
医务英语
We are traveling upwards away from our solar system, out of the spiral arms of the Milky Way. In front of us, lie vast clusters of stars, satellite groups that orbit the heart of our galaxy. These are globular clusters, over 150 have been discovered.
自然百科2011年
Measuring the brightnesses and colors of the stars in the globular cluster, we can figure out how old they are. Here is the remarkable thing: they are very old. Globular clusters, at least the stars in the globular clusters, in many cases, are almost
自然百科2011年
One of the puzzles about our galaxy is that we know that it's had stars forming continuously for about the last ten billion years. But at the rate/ it's eating up its gas now, it's forming new stars, it should burn out that gas soon, should run out o
自然百科2011年
But if you look carefully, stars aren't spread smoothly across the whole sky. They are gathered together into a band that loops around the sky which we call the Milky Way. That bright strip across the sky with its extraordinary abundance of stars and
探索与发现2013年