单粒子激光测速仪

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(55) / 评论(0) 分类 VOA常速英语2008年(四月)

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Whether it's for streaming Netflix or sharing files, we're gobbling up more and more dataand we want it faster. But even shooting data with lasers over fiber-o

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(五)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(62) / 评论(0) 分类 2017年VOA慢速英语(七)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(72) / 评论(0) 分类 VOA常速英语2007年(十一月)

By Jessica Berman Washington 20 September 2007 Scientists say they have evidence that a ferocious dinosaur made famous by the movie Jurassic Park definitely had feathers. Experts say the dinosaur, called Velociraptor, had a wing structure just like m

发表于:2019-02-06 / 阅读(93) / 评论(0) 分类 2007年VOA标准英语(九月)

IN THE NEWS - Scientists May Have Found 'God Particle' 新闻报道 - 科学家们可能发现了上帝粒子 This is IN THE NEWS in VOA Special English. 这里是美国之音慢速英语新闻报道。 This week, scientists in Switzerland reported a

发表于:2019-02-18 / 阅读(73) / 评论(0) 分类 2012年VOA慢速英语(七)月
学英语单词
5'-DFUR
access to data
alkylphenol
ANMS
anterior pituitary
aroh
articulus sacroilicus
Balantak
beam alignment assembly
BMDATC
bowel-viscus interconnection
burdin
central fulcrum
cholinergic drug
come to much
concrete lined pipe
cooling water outlet
cradlesong
custard-like
Cyclea tonkinensis
despected
don't get me wrong
draw-off juice
earth observation
electronic oscillations
embrave
fancy-ass
fanzines
fascia dentata
fibroadenomata
Ficus benjamina
filmarone
first branchial arch complex defects
francheska
fruit container
ft value ft
function of spectral power distribution
fusion current
Gbégoudo
get someone's blood up
girdle of fire
Glaber
half a gale
halfway line
hierarchy of information storage
immersion-method
impugnation
increasing annuity
intersecting fault
invoke request
is out
khartoum (al khurtum)
Kurt Waldheim
Lagbar
lepas testudinata
light thinning
long voyage
Luzéia
map language
minor key
nakey
native compiler
negative pion
over-twining
peepling
perigon angle
postrubella syndrome
pro-independences
proctologists
propman
Provigan
pupa(e)
purple everlasting
quota of output
Rainsburg
ramidus
RCC element
rediscuss
reserve bus bar
residents association
resultant product
sectoria
Shicomycin
sky-wave station error
sonar attack center
statutory oath
subschema control structure file
tax subsidy
thermoradometrictitration
trip off
tubular-interstial diseases
tunnel cap
unbounded spectral operators
unfitty
vestigial sideband emission
vexillological
vibrating sifter
web app
wedding chest
whip a fault out of sb.
Windows activation
worm with disengaging motion