单词：quad chamber rocket engine
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NASA Successfully Tests Hypersonic 1 Jet Three years after its first test flight ended in an explosion, NASA on March 27 successfully launched an experimental jet that the agency believes reached a re
英语沙龙2004全年合辑下
Going up quickly, like a rocket Helen: Hello, this is Real English from BBC Learning English. Im Helen. Zo: 你好吗? 我是刘佳。 Helen: Today were going to look at words and phrases that have recently become part of the English language. Zo: 地道英语
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听广告学英语:Mitsubishi GDI Engine三菱汽车引擎 Mitsubishi GDI 三菱汽车引擎 原文 It's the GDI, the engine technology of tomorrow is already being driven today. Mitsubishi's GDI engine produces more power, reduces fuel consumption, and emits less carb
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美国动力公司研发提升五成油效对置活塞二冲程发动机 This little engine looks like it has only three pistons, but in fact, it has six, sharing only three cylinders. 这台小身材引擎看起来只有3个活塞,但事实上却有
VOA标准英语2016年(三月)
Good morning. Oh, what a day. What a lovely day. Its a pleasure to be addressing the Wake Forest graduating Class of 2015. I want to start by thanking the administration and the Trustees for inviting me to speak. I want to thank them for giving me an
英语语言学习
What Do Octane Numbers Mean? At the gas pump, you have a choice of octane numbers. 87? 93? Whats the difference? To explain octane numbers, lets take an imaginative leap into the internal combustion engine of a car. Inside the cylinders are combustio
英语听力文摘 English Digest
Rocket man 火箭队队歌 - 电影《农民宇航员》结尾曲 演唱者：Elton John 《农民宇航员》，虽然是小成本电影，情节也很简单，但是很有感觉。尤其是最后的结尾曲，是对电影的一个总结，rocket m
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VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VOA Special English program, EXPLORATIONS. Today, we report on some of the early research in the development of rockets
Explorations
EXPLORATIONS - How Robert Goddard Helped Lead America Into Space By Voice of America Broadcast: Wednesday, April 20, 2005 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffit
Explorations
NASA Successfully Tests New Rocket Engine NASA最强火箭测试成功 火星之旅指日可待 The American space agency successfully tested a powerful new rocket engine this week in the desert of northern Utah. The rocket booster is meant to take a
2016年VOA慢速英语(七)月
This Internal Combustion Engine is 50% More Efficient 新型内燃机效率提高50% Internal combustion engines in cars may be on their way out, but experts agree it will take a few decades before electric-powered vehicles become dominant. Meanwhile
VOA标准英语2016年(三月)
If you heard the first part, youll know that Princess Talia has woken up somewhat confused. She is a student at an ancient college, but shes not quite sure how she got there. In this episode we will find out how she fits into her new surroundings. Ou
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Todd: Jonathan we are talking about conspiracy theories. What about the one where the sound? That when the rocket lands, they have actually audio of the rocket landing and you can't hear the rocket engine, and the rocket engine should be making a rea
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The land-speed record 地面速度记录 How to build a 1,000mph car 怎样建造时速1000英里的汽车 Hybrid rocketry will be used to drive faster than ever before 混合火箭技术将用于更快地驱动车辆 May 5th 2011 | from the print ed
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18 物理学家、火箭专家戈达德罗伯特 DATE=3-21-01 TITLE=EXPLORATIONS #1944 - Robert Goddard BYLINE=Staff VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VO
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Science and technology 科学技术 Reusable spacecraft 可重复使用的航天器 Jet-set rocket-man 乘喷气式火箭的乘客 A small British firm is working on a nifty new jet-rocket hybrid engine 英国一家小公司正在研发一款轻巧的新
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BEIJING, Apirl 1 (Xinhuanet) -- An Ariane rocket launch of two communications satellites was aborted Wednesday after a technical hitch at the scheduled moment of liftoff in French Guiana on Wednesday. According to Arianespace, the Ariane 5 rocket's V
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达喀尔首次驶入玻利维亚 LA PAZ, Jan. 12 (Xinhua) -- Bolivian President Evo Morales Sunday celebrated his country's inclusion in the Dakar Rally, saying it marks the first time ever Bolivia has hosted a world-class sporting event. The race e
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BEIJING, Oct. 18 (Xinhuanet) -- NASA recently unveiled its new rocket design, named Space Launch System (SLS), according to media reports. The rocket will make its first unmanned flight in 2017, and the flight with astronauts aboard won't happen unti
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On the morning of July 16, 1969, Neil and his two fellow Apollo 11 crewmen rose at 4:15 A.M. They had steak and eggs for breakfast, the same breakfast all astronauts had before a flight. The night before a special visitor had arrived for dinner to wi
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