单词：small topological space
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EXPLORATIONS -February 13, 2002: Yabby and Space Place By Paul Thompson VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with the VOA Special English program EXPLORATIONS. Today we t
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Japan Deploys Jumping Robots on Distant Asteroid Two small Japanese robots landed on a distant asteroid last weekend. The robots took small jumps, making it the first time that any device from our planet has moved on the surface of an asteroid. The t
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Unit 11 Heroes After-Class Reading PASSAGE I Mr Lee's Side of the Street When Hattie Robinson moved from a lonely farm outside Tallahassee to West Perrine, Fla., this suburb of Miami was a friendly ne
新编大学英语阅读部分
Heading on a short, weekend getaway? If you need to bring a small amount of concealer, foundation or lotion, pour them into an old contact case to take up less space. 准备一个周末的小旅行？如果你需要带一点遮瑕膏、底妆、或乳液
这句英语怎么说
Yal: Hey Don, look what I've got here! Don: Oh cool, its one of those little origami cranes. I didn't know you were into the whole origami thing. Y: Well the little paper figures are pretty cool, but what really excites me about origami are all of it
英语时差8，16
Pockets of sub surface gas will build up and eventually burst through Pluto's frozen surface as geysers, Will G demonstrates how even a small increase in temperature produces a large geyser. Okay,we're going to put liquid nitrogen into this plastic b
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Broadcast: June 4, 2003 By Paul Thompson VOICE ONE: This is Ray Freeman. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today, we tell about how astronauts prepa
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As the old song has it, breaking up is hard to do. 正如一首老歌唱的一样，分手太难。 Not only is there the emotional angst, but in many cases one partner has to pack up and move out. 这困难之处不仅在于情感上的忧虑，在许
阅读空间
房子少，房价涨。人们一房难求，一房难买。连最基本的住都满足不了，何谈幸福？！ Jennifer: Hello and welcome to 6 Minute English from bbclearningenglish.com. My name is Jennifer and with me in the studio is Neil. Wel
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拓扑排序 topological sort 偏序 partical order 拓扑有序 topological order AOV网 activity on vertex network AOE网 activity on edge network 关键路径 critical path 匹配 matching 最大匹配
实用英语
People are flocking to the central Florida coast for Friday's scheduled launch of the space shuttle Endeavour(奋进号) , the second to last launch of a shuttle as NASA brings the three-decade-old program to an end. The space agency is expecting aro
英语新闻
Science and technology 科学技术 Mining asteroids 小行星采矿 Going platinum 小行星采矿淘铂去 Mining metals from asteroids seems a bonkers idea. But could it work? 小行星采矿这想法听似疯狂，但行得通吗？ CAN reality t
经济学人科技系列
OS-X was assembled in the laboratory where its remnants now reside. OS-X是在实验室中装配的，OS-X的残料现在还在这间实验室内。 But OS-M, the next generation, will be built in a factory now nearing completion in Chongqing. 但是在
经济学人科技系列
MOSCOW, Nov. 25 (Xinhua) -- Russia's Proton-M carrier rocket was launched on Friday from the Baikonur space center in Kazakhstan with a Chinese communications satellite AsiaSat-7, according to Russia's Federal Space Agency Roscosmos. Roscosmos' live
英语新闻
THE APOLLO PROGRAM CAME AFTER THE GEMINI PROGRAM. APOLLO SPACECRAFT WERE BIGGER AND BETTER. NASA THOUGHT A MOON LANDING MIGHT HAPPEN IN 1967. THREE ASTRONAUTS WERE CHOSEN FOR THE FIRST APOLLO MISSIONROGER CHAFFEE, GUS GRISSOM, AND ED WHITE, THE KIND
名人认知系列 Who Was
Leaders Satellites Space: the next startup frontier 社论精粹 卫星 太空：下一个 Where nanosats boldly go, new businesses will followunless they are smothered with excessive regulations 微型卫星大胆地去哪儿，新的商业就会跟去
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Hello and Welcome to News and Reports on China Radio International. In This Edition US President Barack Obama visits Poland to stress missile defense and energy security. Japan and the European Union agree to begin negotiations on a free trade agreem
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Science and technology. 科技。 Mining asteroids. 小行星采矿。 Going platinum. 小行星采矿淘铂去。 Mining metals from asteroids seems a bonkers idea. But could it work? 小行星采矿这想法听似疯狂，但行得通吗？ CAN rea
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