激光多普勒技术

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(96) / 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(85) / 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(70) / 评论(0) 分类 VOA标准英语2014年(二月)

Transcript This is Scientific American's 60-Second Science, I am Cynthia Graber.This will just take a minute. Physicists at the Brookhaven National Laboratory have been able to send information ahead of particle beams racing at nearly the speed of li

发表于:2018-12-24 / 阅读(124) / 评论(0) 分类 Scientific American(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(102) / 评论(0) 分类 2017年VOA慢速英语(七)月

If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning

发表于:2019-01-02 / 阅读(416) / 评论(0) 分类 2017年VOA慢速英语(六)月

2. agri 你已认识field是“田地”, 你是否也知agri的意义? 在有关农田的词汇里, field竟都被agri所代替。 agri=field 田地,农田(agri也作agro,agr) 1. agrology agr

发表于:2019-01-06 / 阅读(103) / 评论(0) 分类 英文语法词汇

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(154) / 评论(0) 分类 2005年NPR美国国家公共电台

超声成像 ultrasonic imaging 实时成像 real-time imaging 灰阶显示 gray scale display 彩阶显示 color scale display 经颅多普勒 transcranial doppler 彩色多普勒血流显像 color doppler flow imaging 彩色血流造影 color flow

发表于:2019-01-08 / 阅读(118) / 评论(0) 分类 医学英语

Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver

发表于:2019-01-11 / 阅读(175) / 评论(0) 分类 英汉幽默故事选读

AS IT IS 2013-08-19 Survival Shelters, Tornadoes and Old Ironsides 生存避难所,龙卷风和老铁壁 Hello, and welcome to the Monday edition of As It Is, our daily show for people learning everyday American English. 大家好,欢迎大家收听周

发表于:2019-01-12 / 阅读(93) / 评论(0) 分类 2013年VOA慢速英语(八)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(142) / 评论(0) 分类 2013年VOA慢速英语(五)月

AS IT IS 2013-09-11 Rising Temperatures Could Mean More Wildfires 不断上升的气温可能会意味着更多的森林大火 From VOA Learning English, welcome to As It Is! Im Mario Ritter. On our show today, we hear from two weather experts. We he

发表于:2019-01-12 / 阅读(211) / 评论(0) 分类 2013年VOA慢速英语(九)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(102) / 评论(0) 分类 2012年VOA慢速英语(一)月

生活大爆炸第一季第六集_1:The Middle Earth Paradigm -Rajesh: Okay, if no one else will say I will. We really suck at paintball. 好吧,如果没人说那就我来说。我们在彩弹比赛中的表现实在太差了! -Howard: That wa

发表于:2019-01-28 / 阅读(197) / 评论(0) 分类 生活大爆炸第一季

By Carol Pearson Washington 08 January 2008 New technology makes surgery safer, shortens recovery time and leaves no scars. Both physicians and patients are pleased with the results. VOA's Carol Pearson has more. Maria Viruet recently had her gallbla

发表于:2019-01-31 / 阅读(128) / 评论(0) 分类 VOA标准英语2008年(一月)

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(117) / 评论(0) 分类 VOA常速英语2007年(十一月)

Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver handle the situation, we wondered. Straight-faced,

发表于:2019-02-03 / 阅读(108) / 评论(0) 分类 趣味英语

Doppler on Wheels Rolls Into Tornados Doppler radar reads the weather based on reflections from items moving through the air. Joshua Wurman was the first to put the technology on wheels and drive it directly into the path of a tornado. I invented Dop

发表于:2019-02-17 / 阅读(149) / 评论(0) 分类 VOA常速英语2013年(八月)

知识点讲解: 1、中文意思一样 insist persist 2、两个词长得像 special specialty 3、长得像+中文意思一样 technique technology ① Technique 方法、技巧 Hes a great basketball player. He has flawless technique. 他是位很

发表于:2019-02-21 / 阅读(93) / 评论(0) 分类 每天三分钟学英语
学英语单词
-parter
abutting edge
acid hose
additive class
amplitude coding
anestnetizing
archaistic
audio frequency signal to interference ratio
Bazna
bresnans
carapacial
cardiotocographically
cargo rig
cell guide
choked crushing
circulation cell
close coupled type aeroplane
commissive mood
County Court Rules
cutter dredge
cyclobutanols
daily average production per well
debt-driven
diamagnetism coordination compound
double wedge aerofoil
Eberstein
eddy-current braking
effective stress parameter
Elrica
employment structure
endoreduplication (levan & hauschka 1953)
eutectic austenite
fabulousnesses
Flemingia yunnanensis
forest railroad transportation
frustratingly
fruto
gadolinium carbonate
glossary name
graffs
guancos
harmonics function
hasbara
hospital markets
hypothetical creature
i-koruen
incentivises
infracardiac
inpurtured
integrity mechanism
International Association of Meteorology and Atmospheric Physics
intestinal button
iusto minor
Karuni
La Llave
loctaltube
lundum (portugal)
macrobrachium lepidactyloides
maughanii
Mohamedanism
My uncle had a heart attack last year
net short position
network subsystems
notation without barckets
Nuclotixene
Oberonia caulescens
offer a choice
one-eyed snakes
outright electrical failure
pigments
pio-epithelium
presprayed
prompt Rossi alpha
razoumowskyn (razoumovskyn)
redressing ga(u)ge
refrigerant condenser
Representations and warranties
Rh esusfactor
Saussurea incisa
section levelling
shakespeare ballets
sir douglas
SMRAM
soapinesses
split fiber
starting anode
steady allocation method
stochastic semigroup
thumber
timberline
transducer input admittance
uk quad
undeads
untraceable pseudonymity
unviewed
Velinskoye, Ozero
vibrating tray method
volume changes in the soils
wenes
yell bloody murder
Yongdam
zhongshan station