单词：orbital indices
单词：orbital indices 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
The numbers we see every business day can tell us important information about our economy, but where do they come from and what do they mean? This is Stock Markets in Plain English. Let's get started by talking about companies. There are two basic ty
英语解说豆知识2010年
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
7. But particularly when viewed against America's turbulent past, today's social indices hardly suggest a dark and deteriorating social environment. 【分析】复合句。逗号前面是省略了主语和系动词的 when 引导的时间状语从句，
考研英语长难句讲解
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
spacecraft（太空船）barracks（营房）headquarters（司令部）horsepower（马力） jin（斤）li（里）yuan（元）series（系列）species（种类）works（工厂） 外来词的复数形式，例如： 拉丁语：datumdata（数据
薄冰实用英语语法详解
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
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)
7. But particularly when viewed against America's turbulent past,today's social indices hardly suggest a dark and deteriorating social environment. 【分析】复合句。逗号前面是省略了主语和系动词的when引导的时间状语从句,补
考研英语长难句讲解
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）
Chinese stocks carved out their biggest gain in two months amid speculation that A-shares could be included in MSCIs global benchmarks. 由于市场猜测A股可能会被纳入MSCI明晟的全球基准，中国股市今日出现两个月来最大幅度
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本期内容： Sterling weakened, as currency markets fretted that Britons might vote to leave the European Union in June. It fell against the euro, which in turn fell against the dollar and yen; and it dipped below $1.406 to the dollar, its lowest
夏说英语新闻晨读
今天我们要学的词是 thumbs-down. Thumbs-down 名词，有反对的意思。German Chancellor Angela Merkels conservatives lost in two out of three regional state elections as German voters gave a thumbs-down to her refugee policy. 德国总理默
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