[化] 激光跃迁

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(145) / 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(129) / 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(114) / 评论(0) 分类 VOA标准英语2014年(二月)

Grammar Girl here. Today, Bonnie Trenga will help us choose better transition words. This article could make you a tad hungry, because today were comparing the art of writing to the art of making a sandwich. In fact, just for today, we might need to

发表于:2019-01-02 / 阅读(150) / 评论(0) 分类 英语语法 Grammar Girl

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

In 1963, President John Kennedy gave a famous speech at American University. In the speech, Kennedy said the following lines: Our problems are manmade; therefore, they can be solved by man. And man can be as big as he wants. No problem of human desti

发表于:2019-01-03 / 阅读(145) / 评论(0) 分类 2017年VOA慢速英语(九)月

A new survey of Internet security says the computer attacks are increasingly being used to make money, rather than simply to make mischief. Virus writers are finding also ways to amplify their powerthey're renting out robot armies of computers under

发表于:2019-01-08 / 阅读(181) / 评论(0) 分类 2005年NPR美国国家公共电台

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(217) / 评论(0) 分类 2005年NPR美国国家公共电台

Monday's meeting at the White House between President George Bush and President-elect Barack Obama is the latest symbol of a presidential transition that appears to be moving ahead smoothly, at least initially. VOA National correspondent Jim Malone

发表于:2019-01-09 / 阅读(159) / 评论(0) 分类 VOA标准英语2008年(十一月)

U.S. President George Bush and President-elect Barack Obama will meet at the White House on Monday. As VOA's Paula Wolfson reports, Mr. Bush says they will discuss the major issues facing the nation. President Bush assembled members of his Cabinet t

发表于:2019-01-10 / 阅读(110) / 评论(0) 分类 VOA标准英语2008年(十一月)

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

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(164) / 评论(0) 分类 2012年VOA慢速英语(一)月

Both U.S. President George Bush and his successor, Barack Obama, are emphasizing the importance of a smooth transition, so Mr. Obama can tackle the country's economic problems as soon as he takes office on January 20. VOA's Kent Klein reports from W

发表于:2019-01-13 / 阅读(133) / 评论(0) 分类 VOA标准英语2008年(十一月)

U.S. President-elect Barack Obama is moving his White House transition forward, as political turmoil builds over the selection of his successor in the United States Senate. The governor of the state of Illinois stands accused of trying to sell the S

发表于:2019-01-13 / 阅读(147) / 评论(0) 分类 VOA标准英语2008年(十二月)

[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(260) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

今天我们要学的词是transition。 Transition, 是过渡的意思。A smooth transition, 就是平稳过渡。古巴总统卡斯特罗宣布辞去国务委员会主席的职务。美国总统布什表示,希望古巴能由此开始向民主过渡

发表于:2019-01-25 / 阅读(158) / 评论(0) 分类 英语每日一词

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(165) / 评论(0) 分类 VOA常速英语2007年(十一月)

今天我们要学的词是transition。 Transition, 是过渡的意思。A smooth transition, 就是平稳过渡。古巴总统卡斯特罗宣布辞去国务委员会主席的职务。美国总统布什表示,希望古巴能由此开始向民主过渡

发表于:2019-01-31 / 阅读(146) / 评论(0) 分类 英语单词荟萃

By Al Pessin Pentagon 19 October 2007 The U.S. military's effort to rebuild major infrastructure in Iraq will be winding down during the coming year, leaving the Iraqi government to fund the effort and to find engineers capable of handling the projec

发表于:2019-01-31 / 阅读(171) / 评论(0) 分类 2007年VOA常速英语(十月)

NATO's secretary-general says foreign forces in Afghanistan will remain on combat duty during the scheduled transition to Afghan security control in 2014. That statement by Anders Fogh Rasmussen came after U.S. Defense Secretary Leon Panetta said Ame

发表于:2019-02-08 / 阅读(155) / 评论(0) 分类 英语新闻
学英语单词
absorption pyrometer
acidic odo(u)r
amino-sumene
arisaema robustum nakai
astropaths
bam
beta hydroxybutyric dehydrogenase
borely
brake level guidance
cantacuzino
captivators
car weight
circulation degassing process
cixous
cold finisher
colectivoes
computer organization
continge
convolving
corticotropin gel
crane structure
culicoides (beltranmyia) duodenarius
cultural changes
dassn't
Detalup
device template
directive factor
disazo dyes
disto-molar
donated surplus
dwelling standard
energy front
Eritrichium heterocarpum
factor mobility
flood protection dike
food yolk
formolatiom
four-channel multiplier
fungus fodder
generalized least squares
hadco
hand-to-mouth purchasing
hidromeiosis
higher nuclides
hot-guy
inculcative
Kybernetika
laminated rod
leaf surface
legia
low-temperature endothermic peak
lung resistance
magnetic ageing
market quality
maximal submodule
melospiza melodias
merithal
migrated time
milk sugars
molecular susceptibilities
msbp
myotendinous
Nitogenin
NVRAMs
Oktatensin
overflourishes
parallelomete
parietal vessel
Pongola
pre-K
primary dormant period
purely imaginary numbers
raphetamine phosphate
recolors
remote entry unit
reproduce head
rhaphium popularis
ruther
santaquin
scratching brush
sheet-stringer panel
slag charge
slainer
smelling the botom
snow protection bank
spleen transplantation
staff-cabins
syllabic manipulation
tangible resources
temparin
the tunnel vision
thermal generator set
thresher with undercarriage
triple-some
UIM
undrinkable
upward adjustments of prices
USB modem
uwaydi
Veckholm
village community
West Coker