激光束自陷作用

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(122) / 评论(0) 分类 VOA常速英语2008年(四月)

31 A Young Pioneer Long ago, when the western part of the United States was still a wilderness, a young boy, called Kit, not yet twenty years old, went from his home in the East to learn about the new country. He wanted to know what lay beyond the R

发表于:2018-12-08 / 阅读(183) / 评论(0) 分类 背诵为王第一册

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(101) / 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(105) / 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(89) / 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(82) / 评论(0) 分类 TED演讲科技篇

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(123) / 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(118) / 评论(0) 分类 2017年VOA慢速英语(七)月

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(182) / 评论(0) 分类 2005年NPR美国国家公共电台

[00:00.00]change one's mind anyhow argument misunderstanding [00:05.09]改变注意 ad.不管怎样 n.辩论 n.误会,误解 [00:10.19]ashamed Cincinnati counter disappointment [00:14.72]a.惭愧,害臊 n.辛辛那提(美国城市) n.柜台 n.失望;

发表于:2019-01-08 / 阅读(295) / 评论(0) 分类 高中英语词汇

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(188) / 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(164) / 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(134) / 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(192) / 评论(0) 分类 美国习惯用语

[0:0]lable laboratory lad lag标签,标记 实验室 男孩,小伙子 落后,滞后 [1:9.3533]lamb landlord landscape lane羔羊,小羊 地主,房东,店主 风景,景色 小路,小巷 [1:52.8522]largely laser latter laughter大部分,主要地 激光器 后者的,末了的 笑,笑声 [2:36.6

发表于:2019-01-16 / 阅读(213) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

ROBERT SIEGEL, HOST: A lot of companies have promised to do their part to reduce their releases of greenhouse gases that are trapping heat and giving the planet a fever. Among them are big food companies, including the biggest American grocer, Walmar

发表于:2019-01-16 / 阅读(110) / 评论(0) 分类 2017年NPR美国国家公共电台8月

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(147) / 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(139) / 评论(0) 分类 VOA常速英语2007年(十一月)

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(129) / 评论(0) 分类 经济学人科技系列

发表于:2019-03-01 / 阅读(199) / 评论(0) 分类 Wee Sing For Christmas
学英语单词
acoustic fatigue
alocasia odora c.koch
anhydrous ammonia
arai
atrophodermia
baybolt
behari
Buqay'ā'
calcification of lymph node
classification of organisms
close with an offer
cottage cheese
cowies
craigmontite
Daphne mezereum L.
deck and roller
Delairea odorata
dihydrogeraniol
do-mi-so
Dow process
eejits
family theophrastaceaes
fiber optic member
filechecker
floccular degeneration
full-commission
gene diagnosis
Gibert's disease
GNGA
goose barnacles
great smoky mts.
hagmena
hallies
haplologic
inantidotal
inhibitor effectiveness
integral control coefficient
intraintestinalis arteria
itinerant
john ciardis
latching circulator
lexical procedure
lipophicity
logical data link
long-term charter
lopings
mairie
Malanville
membrane physiology of invertebrates
Mendenhall, Cape
miamians
military aircraft
minced meat omelette
molecular volume
Montfermeil
netmaker
no offence to
open cycle mechanism
operating reserves
parcels
Petrina
philips
physical addressing
phytogenic soil
pick-a-cud
Pinnes, Akra
pissest
play with oneself
prizefighter
rankled
reactance drop
reocil test
reproductive capscity
Saidaiji
Saussurea pinnatidentata
Sheng Xuanhuai
shipbuilder's computing center
signal mechanism
silver-green
slackpacked
spent fuel pit heat exchanger
Star Ground
starting and acceleration test
Stimmel test
sugarhouse molasses
Sutherland Ra.
think ill of sb
time study principle
to tie for second place
tu quoque
unconverted
unit construction bridge
unreason
urgency principle in dispatch
variedades
vestigials
Visual InterDev
wedge-type flow
WIHM
work one's way out
WRM