氯化氢化学激光器

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(232) / 评论(0) 分类 VOA2003(下)-环境与健康

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

发表于:2018-12-07 / 阅读(177) / 评论(0) 分类 VOA2003(上)-科技导航

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(148) / 评论(0) 分类 VOA常速英语2008年(四月)

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(162) / 评论(0) 分类 VOA标准英语2014年(六月)

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(133) / 评论(0) 分类 2013年VOA慢速英语(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(146) / 评论(0) 分类 2017年VOA慢速英语(七)月

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(180) / 评论(0) 分类 Scientific American(八)月

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(218) / 评论(0) 分类 2005年NPR美国国家公共电台

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Steve Ember. This week, we will tell about an American study of the brain disorder schizophrenia. We tell about cars that use hydrogen as fuel. And,

发表于:2019-01-11 / 阅读(202) / 评论(0) 分类 VOA慢速英语2008(十)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(202) / 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(170) / 评论(0) 分类 2012年VOA慢速英语(一)月

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(160) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(218) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(156) / 评论(0) 分类 自然百科2009年

Why Teflon Is Slippery Teflon is the trademark name for PTFE, a type of plastic. If you own any non stick cookware, then you probably use PTFE on a daily basis. You might not realize, as you fry your morning eggs, that PTFE is one of the most slipper

发表于:2019-01-22 / 阅读(311) / 评论(0) 分类 英语时差8,16

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(174) / 评论(0) 分类 VOA常速英语2007年(十一月)

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(148) / 评论(0) 分类 地道美语播客

Chemical Rush Brian Mcfadden Chess game, Im the pawn Youre the queen, Im the throne Take me out tonight Make your move, pick and choose Anywhere Im gonna lose Give it to me black or white Feel it coming on Like a pulse in my head Sending chills right

发表于:2019-02-07 / 阅读(154) / 评论(0) 分类 好听的英文歌曲

Why Teflon Is Slippery? 1954年,法国工程师马克格雷瓜尔(Marc Gregoire)的妻子柯莱特(Colette)突发奇想,觉得丈夫用来涂在钓鱼线上防止打结的不粘材料特氟龙(Teflon)如果可以用在煎锅上,效果一定不错

发表于:2019-02-24 / 阅读(172) / 评论(0) 分类 英语听力文摘 English Digest

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(255) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
adjustment mortgage
Adrano
agaricus bresadolanus
all-request
Anemone subindivisa
angle sleeker
anglo-don horse
balse (mexico)
banking house
benomy
bizygomatic
brachysyllabic
butylidyne
canned whole mushrooms
car-kilometer
clause and subclauses
congenital fracture
container seedling
correcting mount
counterargument
days lost
Dobson, (Henry) Austin
double dummy
ectocysts
english fingering
expulsion from parliament
fabrique
fluosolids drier
foot-shaped loop
Frankland, C.
free communists
frisoli
fugl-meyer
fusarium wilts
generic term ofgeographical name
get someone by the short hairs
googology
groebner
gunung
Headington
herpetic cowpox
heterotropa
hoflin
Hunger Games
incretionary
inline recovery
intercostal nerve
kicking balls
kopah (takua pa)
lawful relict
load image file format
microcomputer-upgrade terminal
MKHS
mlady
module checking routine
monolepta formosana
mounting evidence
Nomeus albula
overhung rudder
partitive genitives
phylogenesis classification
phytoconstituents
picrarrhiza kurroa royle
pious platitude
pipewell
pitchstones
presternal notch
prose-and-verse
pyrene testudinaria testudinaria
quotemark
rates of zinc
re-aggravations
reburials
reduced costs of comparable products
rehousing
rent-a-robber
retrogressions
sacrifice
Schematron
selendang
separation rate
side rod drive
significance levels
Sino-Tibetan languages
sneezeguards
stochastic debugging
strangth
submergence ratio of nozzle
successor account
table zero-sided Lindenmayer system
Tag Image File Format
teaching hospitals
tesill
timeout period
to go off the deep end
top hopper
toymaking
Tsuruhashi
uptown girl
Vacquier Seamount
weft steamer
yearlies