电子束泵浦半导体激光器

By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca

发表于:2018-12-08 / 阅读(143) / 评论(0) 分类 VOA常速英语2008年(四月)

(Hey, how are you? How are you doing? What's going on?) Taylor Swift: Seeing Britney tonight will be amazing. I met her once when I was 15, and she just came off like such a sweet person. And I want her to win. I want Britney to take the world over a

发表于:2018-12-11 / 阅读(109) / 评论(0) 分类 万花筒2008年

澳洲流行天后 Kylie Minogue 最新MV《Crystallize》!小女孩演绎还没当歌星前的凯莉,拿着梳子对着镜子忘情歌唱,热舞。一代歌后的成长史呀,很励志的一首歌,有梦想就要去追逐。 歌词: When

发表于:2018-12-14 / 阅读(126) / 评论(0) 分类 流行英文歌曲

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(129) / 评论(0) 分类 2013年VOA慢速英语(二)月

I'd like to start with a short story. 我想先讲个故事。 It's about a little boy 有个小男孩 whose father was a history buff 他父亲是个历史爱好者, and who used to take him by the hand 常牵着他的手 to visit the ruins of an

发表于:2018-12-18 / 阅读(102) / 评论(0) 分类 TED演讲科技篇

图片1 Everyone at Culips is especially pumped because the summer weather has arrived in Montreal. So, we thought we would make an episode all about feeling excited and full of energy! Here we look at the expressions of pumped up, fired up, stoked,

发表于:2019-01-01 / 阅读(120) / 评论(0) 分类 英语博客-北美风情

The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network

发表于:2019-01-02 / 阅读(140) / 评论(0) 分类 2017年VOA慢速英语(七)月

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(191) / 评论(0) 分类 2013年VOA慢速英语(五)月

By Jessica Berman Washington 19 November 2009 A new study has found that oceans are struggling to help regulate climate as more carbon dioxide, a leading greenhouse gas, is pumped into the atmosphere. The ocean absorbs more than one-quarter of all o

发表于:2019-01-14 / 阅读(165) / 评论(0) 分类 VOA标准英语2009年(十一月)

NOEL KING, HOST: Centuries' worth of shoes are getting oohs and aahs at the New-York Historical Society. The shoes are from the personal collection of shoe designer Stuart Weitzman. The exhibit is called Walk This Way, and NPR special correspondent S

发表于:2019-01-17 / 阅读(121) / 评论(0) 分类 2018年NPR美国国家公共电台7月

Dialogue 2 Xiao Gao: So? What did you think? Wasn't it fun watching these movies? 小高:怎么样,你觉得看这些电影有意思吗? Jingjing: Yeah, it was,but I'm not completely satisfied yet. 京晶:确实挺有意思的,但是我还意

发表于:2019-01-23 / 阅读(115) / 评论(0) 分类 英语PK台

Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve

发表于:2019-01-24 / 阅读(188) / 评论(0) 分类 英语语言学习

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(164) / 评论(0) 分类 VOA常速英语2007年(十一月)

Early effect 厄利效应 Early failure 早期失效 Effective mass 有效质量 Einstein relation(ship) 爱因斯坦关系 Electric Erase Programmable Read Only Memory(E2PROM) 一次性电可擦除只读

发表于:2019-02-05 / 阅读(161) / 评论(0) 分类 实用英语

《Pumped Up Kicks》是该独立流行乐队Foster the People发行的第一支单曲,并且收录在了乐队的第一张同名EP中。这支单曲的曲子写于歌词前,节奏明快带有重低音并且混合了电子和原声两种不同的元

发表于:2019-02-11 / 阅读(129) / 评论(0) 分类 英文特辑精选

现代汉语中有不少词都是英语外来语,High这个词就常和汉语一起混用,可是它真正的意思并不是开心,今天Jenny和Adam要来谈谈美国人怎么使用high。 High有什么问题? 大家都很熟悉high的中国式

发表于:2019-02-15 / 阅读(102) / 评论(0) 分类 美国文化脱口秀

Science and technology 科学技术 Solar power from space 太空太阳能 Beam it down, Scotty 老兄,传下来吧 Harvesting solar power in space, for use on Earth, comes a step closer to reality 在太空获取太阳能以供地球之用:梦想距

发表于:2019-02-16 / 阅读(153) / 评论(0) 分类 经济学人科技系列

Most of the oil has now been pumped out of the ship, the Rena, which hit a reef on October 5th. The ship carried 1700 tonnes of heavy oil. 350 tonnes leaked into the sea. This oil killed more than 1300 sea birds and polluted the sand and rocks around

发表于:2019-02-17 / 阅读(144) / 评论(0) 分类 新西兰英语

Neutrons and protons occupy the atom's nucleus. The nucleus of an atom is tinyonly one millionth of a billionth of the full volume of the atombut fantastically dense, since it contains virtually all the atom's mass. As Cropper has put it, if an atom

发表于:2019-02-17 / 阅读(126) / 评论(0) 分类 万物简史

今天早上 Larry 和李华和一对朋友 Charles and Lisa 约好了一起去打网球.李华会学到两个常用语: pumped 和iffy. LL: I'm really pumped about today's tennis match. How about you, Li Hua? LH: 你对今天的比赛怎么啦? Pumped?你是不是说你很紧张啊? LL: No, I'm

发表于:2019-02-20 / 阅读(200) / 评论(0) 分类 美国之音《流行美语》
学英语单词
acidolysis
acoustical signal
activation adsorption
advisory route (adr)
almost equivariance
anal agenesis
analog image processing
Anshur
arithmetic pipeline
atom-meter
bergstein
bheer
Brandt, Mount
bundle loosed
cardiac second output
chain under cutting machine
cholesterolerectics
cloth lined paper
cloth wearing tester
Columbia City
Cozumel
cri
Cystocaulus
Damous
Derenburg
desipiate
double deoxidizer
drag slide current collector
dual of sheaf
ecomomic planning council
endoperitrophic
exterior trim paint
fallu
family betulaceaes
firm-level
G.M.S.
galvanic vertigo
genus Tanacetum
gombroon
high noon
hold sb. in esteem
idle money capital
inclination error
intrafusal fibers
intropins
jacking control stress
james monroes
JPEG - Joint Photographic Experts Group
laboratory data book
large-aperture seismic array
Leptopus pachyphyllus
line of shadow
little does someone know
loooved
management engineering
moisture - laden air
motherer
multiple digit adder
multiverses
neptunium tetrachloride
nervi splanchnici pelvici
occipita
optical pickup
oropera
pagoda sleeve
palaeozygopleurids
paperwork management
pidonia atripennis
Pirituba
portable telescopic crane
Queudes
repeat sign
sarcophaga krameri
scale of hardness of woodcharcoal
shelf-stacker
shock layer
Silaw Aihagam, Gunung
smooth pipe
spirolobus
standard disk plough
stasidynic
stave churches
strongylodons
system of prize
system programming application
Terek-Say
termination power
theater directory service
trade wind cumulus
tranporting cableway
ultra-low-dose
unconsolidated-undrained triaxial test
underwater viscosity
vides
virtual data connection
volume dilational vibration
voronezh r.
web crystal
well-couched
write off method
wybutin
xanthagenate