无尖峰脉冲激光器

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(129) / 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(111) / 评论(0) 分类 2013年VOA慢速英语(二)月

今天我们要学的词是spike. Spike 作为动词,有猛增的意思。The Centers for Disease Control and Prevention reported that suicide rates rose in nearly every U.S. state from 1999 to 2016, with the rate spiking by more than 30 percent in

发表于:2018-12-30 / 阅读(86) / 评论(0) 分类 英语单词荟萃

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(125) / 评论(0) 分类 2017年VOA慢速英语(七)月

美联社,新闻一分钟,mayor,city,speech,1. New Orleans mayor says large sections of the city will reopen next week, and the French Quarter the week after that. 2. In a prime-time speech from New Orleans, President Bush will outline a new fe

发表于:2019-01-08 / 阅读(174) / 评论(0) 分类 美联社新闻一分钟2005

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(171) / 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(141) / 评论(0) 分类 2012年VOA慢速英语(一)月

She's only a few feet away. 她就在不远处。 The closer he gets, the more nervous he becomes, 他越走近越紧张, the budding zit on his nose growing bigger and bigger until it practically eclipses his face. 鼻子上才刚长出来的青春痘

发表于:2019-01-17 / 阅读(87) / 评论(0) 分类 TED演讲教育篇

Crude oil prices are climbing as energy experts worry about the impact of the fighting between rebel and government forces, and the newly-imposed international no-fly zone, on Libya's oil production. Adding to the price volatility is continuing unres

发表于:2019-01-17 / 阅读(158) / 评论(0) 分类 VOA双语新闻 2011年3月

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(145) / 评论(0) 分类 VOA常速英语2007年(十一月)

Hit: Also

发表于:2019-02-05 / 阅读(162) / 评论(0) 分类 奥运英语

-New signs this morning that the housing market is heating up. Home sales are expected to show another monthly spike this morning. Good news for homeowners. Also, a growing risk that buyers could get burned. Here more with that, our financial contrib

发表于:2019-02-06 / 阅读(111) / 评论(0) 分类 英语新闻

RIO DE JANEIRO, May 11 (Xinhua) -- Brazil's women's volleyball team moved one step closer to the London Olympics after beating Colombia 3-0 (25-11, 25-18, 25-19) in the the South American Olympic qualifiers on Thursday. Brazil will wait for their sem

发表于:2019-02-07 / 阅读(140) / 评论(0) 分类 英语新闻

WASHINGTON, April 10 (Xinhua) -- In a campaign-style speech, U. S. President Barack Obama Tuesday reiterated the Buffett Rule to highlight the importance of economic fairness for the nation's prosperity, as Obama has geared up his reelection bid. The

发表于:2019-02-07 / 阅读(112) / 评论(0) 分类 英语新闻

U.S. President Barack Obama says the only way to break the cycle of spiking gas prices is to shift cars and trucks off of oil for good. He said that is why he asked Congress in his State of the Union address to establish an Energy Security Trust to i

发表于:2019-02-08 / 阅读(88) / 评论(0) 分类 英语新闻

WASHINGTON, June 6 (Xinhua) -- The International Monetary Fund (IMF) said on Monday that it saw inflation the No. 1 challenge for the British economy in 2011. There are significant risks to inflation, growth and unemployment, the Washington-based fin

发表于:2019-02-08 / 阅读(88) / 评论(0) 分类 英语新闻

CHICAGO, Aug. 19 (Xinhua) -- Gold futures on the COMEX Division of the New York Mercantile Exchange ended sharply higher on Friday, notching a new record-settlement high for the fourth time this week, as investors remained cautious about stocks and h

发表于:2019-02-09 / 阅读(105) / 评论(0) 分类 英语新闻

Hi, everybody. 嗨,大家好。 As a nation, our top priority is growing our economy and creating good middle class jobs. 作为一个国家,我们的最高目标就是增长经济并为中产阶级创造良好的就业岗位。 That's why this w

发表于:2019-02-16 / 阅读(93) / 评论(0) 分类 奥巴马每周电视讲话

本期内容: Facebooks quarterly results roundly beat expectations. Overall revenues were up 59% year-on-year, to $6.4 billion, helped by spiking sales of video advertisements and ads on Instagram, the social-media giants picture-sharing platform.

发表于:2019-02-21 / 阅读(104) / 评论(0) 分类 夏说英语新闻晨读

People are voting in Sweden's general election where an anti-immigration party is vying to win a pivotal role in a country long seen as a bastion of liberal values. The populist Sweden Democrats are on course to win at least 1/5 of the vote and becom

发表于:2019-02-23 / 阅读(69) / 评论(0) 分类 英语听力精选进阶版
学英语单词
a man of nerve
alarm handsetting yoke
amynthas incongruus
Arrindy silk
aurangzebs
average reactor temperature rise
be covered with confusion
Bethenod-Latour alternator
biological operation
bird-brains
blind island
calls the shots
carbondioxide enrichment
carter-wallace
chlorine comparator
clyses
corynebacterium granulomatis maligni
data window
deck bridge
design flexibility
diarsenoacetic acid
dilly dallied
disease escaping
double-amputee
echelle spectroscope
electrochemical etching
exuberant
filiety
filmindustri
filter-type sound absorber
forked bar
frontier inspection station
glossodium japonicum
goatburgers
Grandris
hogcotes
homoeocerus pallididulus
hsz
Hugoniots
informal leader
interfacial resistance
ion-exchange spot test
Jacobi-bracket
kwajalein atoll (kuwajleen )
Le Russey
lead of screw
Lembert's suture
Lespedeza chinensis
lobate
Lot's wife
lrom
magnetic axes
maxillipeds
medical adhesive
milk-cow
modernize
offend the ear
opponenplasty
organ formation
palaeotectonic map
pedaneous
Pedicularis cephalantha
Perivoli
pointlets
profile grinder
pulled-type coil
quick drop catch
rashidi
red ash
replicated directory
reposition
restructuration
retroactive policy
Salvia plectranthoides
scatheful
screening number
shake-out property
soft confirmation
specified file format
spirit duplicator
status petit mal
stochastic error-correction
stovepipe irons
strain threshold
strongly gain-coupled dfb lasers
subduers
Sugito
tea candle
the morning of life
time perception
time sample
toll agent
trailing hook
type o control system
typical microstructure
Utah white oak
vaticinated
vizzavonas
wall insulation lining
washes out
What style furniture do you have
Who stole the donkey?