雷射熔合技术

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(90) / 评论(0) 分类 VOA常速英语2008年(四月)

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(79) / 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)

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(96) / 评论(0) 分类 2017年VOA慢速英语(七)月

Quixotic Fusion是一个集合空中杂技、舞蹈、戏剧、电影、音乐、视觉效果的艺术家团体。在TED2012大会上,他们带来了三段动人的舞蹈演出

发表于:2019-01-05 / 阅读(85) / 评论(0) 分类 TED公开课:艺术与幻觉

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

Laser Technology Uncovers Secrets at Stonehenge From VOA Learning English, this is EXPLORATIONS in Special English. I'm Christopher Cruise. And I'm Kelly Jean Kelly. Today, we report on new knowledge about Stonehenge, the famous, ancient stone circle

发表于:2019-01-12 / 阅读(93) / 评论(0) 分类 2013年VOA慢速英语(五)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(129) / 评论(0) 分类 2013年VOA慢速英语(五)月

EXPLORATIONS - Laser Technology Uncovers Secrets at Stonehenge From VOA Learning English, this is EXPLORATIONS in Special English. I'm Christopher Cruise. And I'm Kelly Jean Kelly. Today, we report on new knowledge about Stonehenge, the famous, ancie

发表于:2019-01-12 / 阅读(85) / 评论(0) 分类 2013年VOA慢速英语(三)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(93) / 评论(0) 分类 2012年VOA慢速英语(一)月

STEVE EMBER: Im Steve Ember. FAITH LAPIDUS: And Im Faith Lapidus with EXPLORATIONS in VOA Special English. This week, we tell about one of the most recognizable objects in science fiction the laser. And we tell how the laser has made its mark in the

发表于:2019-01-12 / 阅读(79) / 评论(0) 分类 2010年VOA慢速英语(九)月

AS IT IS 2016-08-26 US College Libraries in a Digital Age 美国大学图书馆走进数字时代 Many U-S colleges and universities are making big changes to their libraries. The schools are finding ways to serve students and to succeed in an increa

发表于:2019-01-12 / 阅读(91) / 评论(0) 分类 2016年VOA慢速英语(八)月

Lasers Used to Chill, Instead of Heat 有史以来第一次:科学家使用激光冷却液体 University of Washington researchers say they used a laser to turn hot water into cool water. Five engineers from the university are the first in the 50-yea

发表于:2019-01-12 / 阅读(60) / 评论(0) 分类 2015年VOA慢速英语(十二)月

The name says it all - Jeff Lorber Fusion. Keyboardist and composer Jeff Lorber brings back his old Fusion moniker for an album reminiscent of his very first band. For the past 20 years, he's been known simply as Jeff Lorber, so it was just a matter

发表于:2019-01-13 / 阅读(96) / 评论(0) 分类 VOA标准英语2010年(六)月

[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(185) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

Fusion is how stars produce energy. It occurs when the nuclei of light atoms, such as hydrogen, are fused together under extreme pressure and heat. Tokamak Energy, from Oxfordshire, believes that the third version of their compact, spherical tokamak

发表于:2019-01-17 / 阅读(134) / 评论(0) 分类 2015CRI中国国际广播电台

Every year satellites are damaged or destroyed by objects orbiting the Earth's atmosphere. An Australian company is now using the latest laser technology to track these objects in order to reduce cosmic damage. Li Dong has the details. Even in space,

发表于:2019-01-19 / 阅读(100) / 评论(0) 分类 世界各地新闻集锦

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(120) / 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(111) / 评论(0) 分类 VOA常速英语2007年(十一月)

CHICAGO, Dec. 9 (Xinhua) -- Ford Motor Co. said Friday it is recalling more than 128,000 Ford Fusion and Mercury Milan sedans over concerns the wheel studs could crack and cause the wheels to separate, Detroit News reported. The recall includes 128,6

发表于:2019-02-14 / 阅读(89) / 评论(0) 分类 英语新闻
学英语单词
Abyad
aggregate model of the economy
Al 'Uzayr
all work,all-work
alternate history
anodize, anodising
atomic polarity
besmircher
binary point
bow screw
branch ledger
bubbles
check this out
christia
complementary non-return-to-zero change on one
constant speed shaft
cop-shop
couples-only
culture and education expenses
deficit covering financing
degreaser
disconcertion
double-bevel butt weld K
dual federalism
ebb out
edgetone amplifier
eilats
electric discharge laser
electromagnetic ship
electron shielding
epilogisms
event response
exterior-strengthening and sweat-reducing prescription
face grinding wheel
flash vaporization
gatemixer
Genemī
gerontophiles
haircast
half-size card
highest intercostal vein
horizontal arch element
horn bowsprit
hydraulic power line
identical twelvemonth period
in the use of
interrogator-responsor
involucrums
Jazi
jdas
jet-hop
Jianyang
let sb in on a secret
limiter electrode
logic driver
Lower Permian
maso
mean sea-level
Mebryl
Medemblik
misconversions
mounted cylinder
outstand
overdyes
Paint L.
parent gelatin
phanelle
Phenethylhydrazine
pinp
posterior scrotal branches
postexed
prefinalist
pseudoelastin
repressilators
reworked tuff
ring castelia
roadway bucket
run an enterprise
sangui-
scheduling software
self-lubrication
slew-rope
slow-thinking
snorkel head valve
snow guns
soap-operas
spinning fluid
stationary bubble
storage access time
strutted one's stuff
system diagonostics
thiooxidant
treacle sleep
unbeseeming
unitisation
variola vaccinia
vizcayas
Warren's test
well and good
westby
World Food bank
wrec