拟分支空间

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(175) / 评论(0) 分类 数学英语

By Paul Sisco Washington 30 May 2008 Saturday's shuttle mission to the International Space Station can come none too soon for station crew members. A broken toilet has had them using a backup system, and they need a new pump mechanism. The crew of th

发表于:2018-12-08 / 阅读(135) / 评论(0) 分类 VOA标准英语2008年(五月)

James Webb Space Telescope Progresses Toward Launch WASHINGTON While the space community is looking back this week to celebrate the 25th anniversary of the launch of the Hubble Space Telescope, workers in an airtight cleanroom at Goddard Space Flight

发表于:2018-12-16 / 阅读(161) / 评论(0) 分类 VOA标准英语2015年(四月)

美国航天局倾力寻找生命之星 For decades, looking for life elsewhere in the universe meant listening for signals that could be from distant civilizations. But recent breakthroughs in space technology refocused some of that effort toward fi

发表于:2018-12-19 / 阅读(182) / 评论(0) 分类 VOA双语新闻 2014年7月

SSN switched service network SS signaling system Station Equipment Station equipment is a component of telecommunications systems such as a telephone or data terminal, generally located on the user's

发表于:2019-01-03 / 阅读(162) / 评论(0) 分类 电信英语

The US shuttle Endeavor has returned home to the Kennedy Space Center in Florida ending its 16-day construction mission to the International Space Station. After a journey of 6.5 million miles, Endeavor touched down just one hour after sunset with i

发表于:2019-01-05 / 阅读(140) / 评论(0) 分类 英语新闻视频

By David McAlary Washington 09 December 2006 After a two-day launch delay, the U.S. space shuttle Discovery is back in orbit, heading to a Monday rendezvous with the International Space Station. The launch from Florida was the first to take place at

发表于:2019-01-07 / 阅读(186) / 评论(0) 分类 2006年VOA标准英语(十二月)

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(257) / 评论(0) 分类 Scientific American(十)月

By Kent Klein Washington 03 June 2008 Astronauts at the International Space Station have attached a $1 billion Japanese laboratory to the orbiting outpost. During a space walk Tuesday, mission specialists Michael Fossum and Ronald Garan unlocked the

发表于:2019-01-11 / 阅读(164) / 评论(0) 分类 VOA标准英语2008年(六月)

By Brian Wagner Miami 27 March 2008 The Endeavour has landed, after completing the longest space shuttle mission to the International Space Station. VOA's Brian Wagner has this report. The seven-member crew of Endeavour returned to Earth more than tw

发表于:2019-01-12 / 阅读(124) / 评论(0) 分类 VOA标准英语2008年(三月)

NASA Focuses on Earth-Like Planets 美国国家航空航天局寻找类地行星 For decades, looking for life elsewhere in the universe meant listening for signals that could be from distant civilizations. But recent breakthroughs in space technolog

发表于:2019-01-14 / 阅读(125) / 评论(0) 分类 VOA标准英语2014年(七月)

By Sean Maroney Washington 12 December 2006 The American space shuttle Discovery has docked with the International Space Station, beginning a week-long mission of major renovations to the orbiting laboratory. VOA's Sean Maroney reports from Washingt

发表于:2019-01-25 / 阅读(191) / 评论(0) 分类 2006年VOA标准英语(十二月)

By Alex Villarreal Washington 25 October 2007 The U.S. space shuttle Discovery has docked at the International Space Station, marking the next phase in a complex mission to expand the international orbiter. VOA's Alex Villarreal reports from Washingt

发表于:2019-01-31 / 阅读(157) / 评论(0) 分类 2007年VOA常速英语(十月)

By David McAlary Washington 14 July 2006 Expedition 13 crewmember Jeff Williams, left , work on the Interface Umbilical Assembly, the failed component of the railcar system, with commander Steve Lindsey in the Destiny module of the ISS Astronauts ab

发表于:2019-02-03 / 阅读(212) / 评论(0) 分类 2006年VOA标准英语(七月)

By Michael Bowman Washington 20 February 2008 The U.S. Space Shuttle Atlantis is back on earth after delivering a new laboratory to the International Space Station. VOA's Michael Bowman has details from Washington. Sonic booms echoed over Florida as

发表于:2019-02-05 / 阅读(116) / 评论(0) 分类 VOA常速英语2008年(二月)

BEIJING, Sept. 27 (Xinhuanet) -- Last-minute preparations for the launch of the Tiangong-1 spacecraft began at the Jiuquan Satellite Launch Center on Monday, meaning the vehicle can soon embark on a mission that will eventually have it dock with a sp

发表于:2019-02-07 / 阅读(137) / 评论(0) 分类 英语新闻

Working in Project Space One of the givens in David Allens Getting Things Done is that you cant do a project. Instead, Allen recommends you break projects down into immediate next actions, discrete doable chunks that can be cranked through with a min

发表于:2019-02-08 / 阅读(212) / 评论(0) 分类 阅读空间

RACHEL MARTIN, HOST: There's a new probe in orbit around the moon. And sometime earlier in this new year, it's expected to land on the Moon's far side, the side we never see from Earth. It is a Chinese probe. And as NPR's Joe Palca explains, although

发表于:2019-02-13 / 阅读(120) / 评论(0) 分类 2018年NPR美国国家公共电台12月

MOSCOW, Oct. 24 (Xinhua) -- The Russian Space Agency Roscosmos confirmed on Monday the list of next crew members who will fly to the International Space Station (ISS) on Nov. 14. Russia's Soyuz TMA-22 spacecraft will bring Russian cosmonauts Anton Sh

发表于:2019-02-18 / 阅读(232) / 评论(0) 分类 英语新闻

JIUQUAN, June 16 (Xinhua) -- She is a wife. She belongs to China's one-child generation. On Saturday, 33-year-old Liu Yang becomes the country's first woman entering space. The home-grown Shenzhou-9 spacecraft, atop an upgraded Long March-2F carrier

发表于:2019-02-19 / 阅读(162) / 评论(0) 分类 英语新闻
学英语单词
90-column card
adenocarcinomatosis
amrita
apical organ
artie shaws
assetstripping
azoic dyeing
bar scale
be perished with cold
bicameralists
bond sinking fund
boy-cut
broad on the starboard beam
brood on/over/about/upon
buxaltine
Cedegolo
cell-freer
Chaibasa
chloride of silver cell
coefficient of frequency
commanding tower
converted length
crimp percentage
cyberbar
dacryoadenitis
decomposed erosion
decrassify
deoxidized annealing
detotalized
dibenzylamine
dichophyses
direct composition
electrical wiring diagram
emergency satellite communications system
eucosma
export led growth
feed volume
Filamerican
fishing expedition
folding chart
generalized thermodynamic force
Geritol generation
giger
grandling
gronk out
half track combine
helical propelling sleeve
Hero of Alexandria
Hopkinson
Hunt process
impact damage of laminate
imposed deformation
in the olden days
industrial districts
infinite-source model
irreversible process of magnetization
just a mood
Karangasem
Ligusticum calophlebicum
lobophytum pauciflorum
magnesium oxide-containing alloy
Manerbio
mean free path of gas
medaling
merge transistor logic
modern nutriology
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MULV-R
nematocyphol
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network security scanner
neuilly
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passive switch
perspicuously
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postulate of subjective interpretation
precative
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sardana
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slope-deflection method
St-Coeur-de-Marie
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time vernier
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