单词：orbital margin
单词：orbital margin 相关文章
Questions for NASA after Rocket Explosion 火箭爆炸后美国国家航空航天局面临的问题 Unmanned Antares rocket is seen exploding seconds after lift off from a commercial launch pad in this still image from NASA video at Wallops Island, V
2014年VOA慢速英语(十)月
Virgin Spaceship Crash Raises Questions 维珍宇宙飞船失事引发诸多问题 WASHINGTON Plans to fly tourists to the edge of space could be delayed after Friday's crash of Virgin Galactic's SpaceShipTwo during a manned test flight. It is the se
VOA标准英语2014年(十一月)
美国火箭爆炸，私营航天产业的挫折 Wednesday's successful launch of a Russian space vehicle taking supplies to the International Space Station was in sharp contrast to the explosion of a private U.S. cargo space craft shortly after it's
VOA双语新闻 2014年10月
Chapter 19 Prices and Discounts 第十九章 杀价与付款 Part 1 Vocabulary 第一部分 词汇 1.cash 1.现金 2.cash register 2.收款机 3.credit card 3.信用卡 4.credit card register 4.刷卡机 5.bar code 5.条形码 6.bar code scanner 6.条码
实境旅游英语
[00:03.81]affordable :a.负担得起的 [00:05.69]bargain :v.议价 [00:07.41]discount :n.折扣 [00:09.24]going rate :现行价格；现在行情 [00:11.17]in bulk :大量 [00:12.92]outrageous :a.荒唐的；骇人听闻的 [00:14.96]preferential pr
商务英语分类核心1000词汇
Galactic Rotation 银河系自转 Astronomers calculate there is ten times more matter in our Milky Way galaxy than we can actually see. Discover how the orbital motions of stars in the galaxy reveal dark matter -- on today's Earth and Sky. JB: I'm Joel
(科普英语)Earth and Sky
26. move v. 移动 27. disk n. 盘，磁盘 28. text n. 正文，文本 29. drive v. 驱动；n. 驱动器 30. see v. 看，看出，查看 31. name n. 名，名称；vt. 命名 32. record n. 记录 3
实用英语
美国私企飞船与空间站对接 WASHINGTON, Jan. 12 (Xinhua) -- A commercial spacecraft, operated by U.S. space company Orbital Sciences Corp., docked with the International Space Station (ISS) on Sunday morning on its first official cargo resup
英语新闻
SCIENCE IN THE NEWS - Space Junk Threatens Earths Orbital Environment JIM TEDDER: This is SCIENCE IN THE NEWS, in VOA Special English. Im Jim Tedder. KATHERINE COLE: And Im Katherine Cole. Today, we tell about an ever increasing number of objects in
2011年VOA慢速英语(九)月
Israel's Foreign Minister, Tzipi Livni, has won a narrow victory in the ruling centrist Kadima party's primary election, putting her on track to become Israel's first female Prime Minister in more than three decades. Ms. Livni will replace Ehud Olme
VOA标准英语2008年（九月）
Global Warming Could Delay Next Ice Age The next ice age could be delayed by tens of thousands of years due to excessive amounts of heat-trapping carbon dioxide in the atmosphere, which disrupts Earths natural cycle of warming and cooling, according
VOA标准英语2012年(一月)
With Failed Launch, US Private Space Industry Suffers Setback 火箭发射失败 美国私人航天受挫 Wednesday's successful launch of a Russian space vehicle taking supplies to the International Space Station was in sharp contrast to the explosi
VOA标准英语2014年(十月)
The amount of debris orbiting the Earth has reached a tipping point for collisions, which would in turn generate more of the debris that threatens astronauts and satellites, according to a US study released on Thursday。 NASA needs a new strategic p
实用英语
By David McAlary Washington 12 July 2006 Astronaut Mike Fossum (on arm)installs the International Space Station's railcar-like mobile transporter U.S. space shuttle astronauts are on their third spacewalk since Saturday, this time to practice method
2006年VOA标准英语（七月）
SAN FRANCISCO, Oct. 27 (Xinhua) -- Hewlett-Packard(HP) on Thursday announced that it will keep its personal systems group ( PSG) and continue to sell personal computers. HP objectively evaluated the strategic, financial and operational impact of spin
英语新闻
CARACAS, May 5 (Xinhua) -- The Venezuelan government announced Sunday that it will fight crime in Caracas with the help of the armed forces, the Venezuelan News Agency reported. The Defense Ministry, the National Bolivarian Armed Forces (FANB) and th
英语新闻
MADRID, Feb. 5 (Xinhua) -- Real Madrid lost their leadership of the ACB Endesa Basketball League after a home defeat to Gescrap Bilbao on Sunday night. Madrid may have beaten the Basques in the EuroLeague just three days earlier, but Bilbao have long
英语新闻
Scotland has voted to stay in the United Kingdom after rejecting independence. 苏格兰独立公投结果揭晓，苏格兰拒绝独立，将继续作为英国的一部分。 With 30 out of the country's 32 council areas having declared after Thursd
英语新闻
巴西总统的支持率在上升 RIO DE JANEIRO, Sept. 10 (Xinhua) -- After falling significantly amid anti-government protests that shook Brazil just four months ago, President Dilma Rousseff's approval rating is once again on the rise, according t
英语新闻
Gas prices 燃气价格 Fuel on the fire 能源产业之争 Another cheap shot at energy firms misses the mark 又一次对能源企业的失败算计 GIVEN the parlous state of Britain's energy system, it is hard to think that Ed Davey, the energy s
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