可见光束激光器

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(89) / 评论(0) 分类 VOA常速英语2008年(四月)

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(63) / 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(78) / 评论(0) 分类 2013年VOA慢速英语(二)月

New Laser Device Helps Parkinson's Patients Walk 新激光设备帮助帕金森患者重获行走能力 Parkinsons disease slowly destroys the brains ability to control the muscles, depriving the patients of their mobility. Researchers at the Mayo Cl

发表于:2018-12-16 / 阅读(64) / 评论(0) 分类 VOA标准英语2014年(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(53) / 评论(0) 分类 TED演讲科技篇

Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 2015年Scientific American(一)月

beam, [bi:m] n 大梁(建筑中用作支撑的木材、金属或石头);光柱;臀围;平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,

发表于:2018-12-30 / 阅读(97) / 评论(0) 分类 不择手段背单词

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(95) / 评论(0) 分类 2017年VOA慢速英语(七)月

Jennifer: Hello and welcome to 6 Minute English from bbclearningenglish.com. My name is Jennifer and Im joined in the studio by Neil. Neil: Hello. In this programme, we look at a story in the news and teach you some new vocabulary and expressions alo

发表于:2019-01-07 / 阅读(85) / 评论(0) 分类 六分钟英语

This is All Things Considered. I'm Michelle Norris. Phone calls from Sweden woke up two American scientists this morning, John Hall and Roy Glauber. They will share the Nobel Prize for Physics with a German Researcher Theodor Haensch. All three worke

发表于:2019-01-08 / 阅读(145) / 评论(0) 分类 2005年NPR美国国家公共电台

Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma

发表于:2019-01-08 / 阅读(156) / 评论(0) 分类 英美文化

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(127) / 评论(0) 分类 2013年VOA慢速英语(五)月

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: 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

发表于:2019-01-12 / 阅读(91) / 评论(0) 分类 2012年VOA慢速英语(一)月

Right on the beam To fly by the seat of his pants 美国英语当中有许多成语和俗语都和过去的历史有关系。例如,美国开拓西部的过程给美国语言增添了不少色彩。可

发表于:2019-01-14 / 阅读(163) / 评论(0) 分类 美国习惯用语

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(118) / 评论(0) 分类 英语语言学习

还记得孙燕姿那首红遍大江南北的《绿光》吗?翻越过前面山顶、层层白云,绿光在哪里?不知道有多少人跟小编一样,以为歌里的绿光只是对幸福的比喻。而其实在现实中,绿光是真实存在

发表于:2019-01-28 / 阅读(82) / 评论(0) 分类 实用英语

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(108) / 评论(0) 分类 VOA常速英语2007年(十一月)

Welcome to Social Networking in Plain English. 本期介绍社交网络。 Networks get things done. Whether it's sending a letter or lighting your home. Networks make it happen.To get from Chicago to Santa Fe, we need to see the network of roads tha

发表于:2019-02-04 / 阅读(69) / 评论(0) 分类 英语万花筒

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(92) / 评论(0) 分类 经济学人科技系列

1. There is not a moment to be lost. 分秒必争。 2. There is noholding back the wheel of history. 历史车轮不可阻挡。 3. Nota soul was anywhere visible. 到处见不到一个人。 4. I felt sorry for not coming in time. 我很抱歉没准时

发表于:2019-03-13 / 阅读(135) / 评论(0) 分类 托福英语
学英语单词
a graveyard cough
acetyl triethyl citrate
adipis
alkenyl benzenes
Amalric I
atomica
auto mode
bamipine
basic flow chart
benben stones
binyans
biological indicators
blind workings of the value principle
Boguila
bones of cerebral cranium
booming engineering
brandons
Brissaud's dwarf
brittle lacquer technique
Burkinabe
Canadian Imperial Bank of Commerce
canteen soldier
cartridge-actuated initiator
closing off
coffined
Death pays all debts
design mode
DFD (data flow diagram)
erection load
Eskimo I.
estrotate
executable file
facsimile ciphering terminal
Farmos
featherings
filling skewness
front-surfaced mirror
gestions
gypaetuss
haemoproteins
Hagar
in-floods
in-line smokemeter
indamin
intermediate cementum layer
JATO engine
kiai
kinoite
Koelwār
La Villedieu
lawless
leadworks
Mahalia Jackson
make up a purse
micro flask
momentary position
multitemporal image
Muqdisho(Mogadishu)
Mīān Jūy
Nanae
never-marrieds
New Franklin
nut lettuce
Oreocharis cinnamomea
people pod
phenol-impregnated modified wood
pick - up point
plash
plectane
point burning
polygonised
posterior superior pancreaticoduodenal artery
pound away
professional component
Protector of Boundaries
Psychotria densa
qu'est
rack one's brain s
real-time trade subsystem
rearraignment
redomiciled
reversi
secular cantata
sound-on-sound recording
special purpose function
sublingual ulcer
succeeding in the vice
surgical unit
tape out
Tarija
tempt one's fate
thematic news frame
tip truck
total crotch length
traverse by angles to the right
turkey buzzard
unbelted
unhearts
viewgraphs
voxergolide
Xuan Vinh
youngun