单词：Crab pulsar
单词：Crab pulsar 相关文章
This is Scientific Americans 60-SecondScience. Im John Matson, got a minute? Say you need a diamond. You could go downto the jeweler, or you could put some carbon deep underground and let it sitfor a couple billion years. Or you could hop in a starsh
Scientific American(八)月
Like a phoenix rising from the ashes, astronomers have found a whole new solar system may be forming in the wake of a star's violent death. This is the Hidden Universe of the Spitzer Space Telescope, exploring the mysteries of infrared astronomy wit
国家地理2008年
There lived a heron by a big lake. He used to catch fish and eat them. But he had become old and could not catch fish like before. He went without food for many days together. I have to think of a plan. Otherwise I won't live for long, thought the he
英语小短文
shrimp crab 不管是英文还是中文，人们往往用动物的名称来形容人，例如骂人的时候说某人像猪，像狗，或者赞扬某人鹤立鸡群等。美国人有时把人形容为像
美国习惯用语
Walk straight，said a mother crab to her daughter，stop dragging yourself sideways all the time． Mother，replied the daughter，just show me how．If you walk straight yourself I will copy you． Don't expect people to do things you would not do
趣味英语
为了让那些没空逛市场的顾客也能购买到新鲜的大闸蟹，江苏省南京市一家公司在当地数个地铁站安装了螃蟹自动售货机，消费者只需通过简单的操作，就可以按照大小进行选择，购买自己相
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Like a phoenix rising from the ashes, astronomers have found a whole new solar system may be forming in the wake of a star's violent death. This is the Hidden Universe of the Spitzer Space Telescope, exploring the mysteries of infrared astronomy with
自然百科2008年
Could these be the neutron stars predicted by Z? astronomers nicknamed them pulsars and immediately set their telescopes searching for further clues about them, just a year later, they found one, in the perfect place to put Z's theory to the test.In
探索与发现2015年