隔音材

(woman) Thank you. It's great to see so many of you interested in this series on Survival in Outer Space. Please excuse the cameras - we're being videotaped for the local TV stations. Tonight I'm going to talk about the most basic aspect of survival

发表于:2018-12-05 / 阅读(163) / 评论(0) 分类 托福听力短文

13 Skyscrapers and Environment In the late 1960's, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointed out that a cluster of tall buildings in a

发表于:2018-12-07 / 阅读(828) / 评论(0) 分类 英语范文背诵20篇

From NPR News in Washington, I'm Barbara Klein. At least nine people have been killed and dozens injured by a bomb at a busy restaurant in Western India. Anti-terrorism forces have been dispatched to the scene and major cities around the country have

发表于:2018-12-17 / 阅读(156) / 评论(0) 分类 2010年NPR美国国家公共电台2月

In a landmark development within stem cell research, scientists say theyve used a cloning technique to make embryonic stem cells that match a patients DNA. The journal Nature highlights a study that shows the potential for using the technology to rep

发表于:2018-12-17 / 阅读(299) / 评论(0) 分类 2011年NPR美国国家公共电台10月

This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one

发表于:2018-12-24 / 阅读(171) / 评论(0) 分类 Scientific American(五)月

Broadcast: Jan 21, 2003 By Gary Garriott Drying food is a simple, low-cost way to keep food safe for eating. Drying removes water that small organisms use to break down food into other substances. Som

发表于:2019-01-02 / 阅读(191) / 评论(0) 分类 VOA2003(上)-社会广角

President Obama traveled to Montana today to promote his administration's health care initiative, telling an audience at a town hall meeting there that the news media may have bear some of the blame for overemphasis on scenes of angry protesters at

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 2009年NPR美国国家公共电台8月

From NPR News in Washington, Im Renita Jablonsky. President Obama is revising his health overhaul plan to add some Republican proposals. But as NPRs Julie Rovner reports, theyre not likely to win many new votes. Mr. Obama said the changes were prompt

发表于:2019-01-08 / 阅读(167) / 评论(0) 分类 2010年NPR美国国家公共电台3月

1. Toyota has announced it will recall more than 400,000 Prius and other hybrid vehicles around the globe to fix brake problems. This recall is the latest in a string of embarrassing safety problems at the world's largest automaker. This recall invol

发表于:2019-01-11 / 阅读(241) / 评论(0) 分类 美联社新闻一分钟2010(二月)

This is the VOA Special English Development Report. Today we bring you a new take on an old tale. It's the story of the three little pigs and the big bad wolf that blew down a house made of straw and one made of sticks. The only house left standing

发表于:2019-01-11 / 阅读(174) / 评论(0) 分类 VOA慢速英语2009年(十)月

Ecocradle serves the same purpose as traditional foams when used as a packaging material. Buying a product these days often means you are getting more than you bargained for. Unwrapping your latest purchase can leave the room strewn with the cardboar

发表于:2019-01-13 / 阅读(188) / 评论(0) 分类 VOA标准英语2010年(八)月

Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h

发表于:2019-01-14 / 阅读(181) / 评论(0) 分类 VOA标准英语2014年(七月)

This is scientific American ,60 second science. Im Chris D..ta. Got a minute? In less you have a pair of noise-cancel headphones. Flying can be annoying to the ears. A lot of low-pitch rumbling makes it into the cabin. The problem is ,the wings ,floo

发表于:2019-01-20 / 阅读(214) / 评论(0) 分类 2015年Scientific American(五)月

Science and technology 科学技术 Astrochemistry 天体化学 The great test tube in the sky 空中的大试管 Space is one big chemistry set 宇宙是一个很大的化学装置 MOST people think of the empty space between the stars as being, wel

发表于:2019-02-04 / 阅读(128) / 评论(0) 分类 经济学人科技系列

Animal leather alternatives like Polyurethane and PVC leather may have solved the fashion industry's animal cruelty problem, but they are not the most environmentally friendly solutions. Pi?atex a new leather-like material made from pineapple leaves

发表于:2019-02-07 / 阅读(190) / 评论(0) 分类 阅读空间

If you're a home gardener you may soon find that the pots you buy flowers and plants in are made from chicken feathers. Yes, tons of feathers that go to waste every year can now be transformed into plastics. Two Washington-area scientists are using f

发表于:2019-02-07 / 阅读(174) / 评论(0) 分类 VOA标准英语2010年(五)月

BEIJING, March 4 (Xinhuanet) -- Well-educated and well-paid single Chinese women were at the forefront of a boom in travel by the country's women in 2010. According to the 2010 Trend Report of Women's Travel, the amount of travel by Chinese women inc

发表于:2019-02-08 / 阅读(159) / 评论(0) 分类 英语新闻

下雨天了怎么办 Were it to me for how to handle the occasion being immersing in rainy days? ? 我好想你 Overwhelmingly extreme yearning do I pour upon you. ? 不敢打给你 Barely courageous off tinkling you. ? 我找不到原因 Unprovoked

发表于:2019-02-09 / 阅读(218) / 评论(0) 分类 英语口语

Many houses in New Zealand are cold. Our traditional wooden house had no insulation. If you live in a house like that, you are paying for heat to escape from the ceiling, walls and under the floor. Insulation is made from material like wool or fibreg

发表于:2019-02-18 / 阅读(188) / 评论(0) 分类 新西兰英语

Although audio tapes and video tapes look different, theyre based on the same principles. Each has a roll of magnetic material which slides past the so-called playback head in the VCR or cassette deck (cassette decks have one playback head, VCRs have

发表于:2019-03-06 / 阅读(286) / 评论(0) 分类 英语时差8,16
学英语单词
0475
acridine
adjustment period
alek
all his life
alternateness
antecession
armoured fighting vehicle (afv)
attached dune
avl tree
Bashdoor
carbonic oxide cell
cataloged priority
ceco
cetoleic
characteristic impedance of lossless line
charge-coupled delay line
chromosol colors
circulating lubrication
competion
concurrent planes
conjugate numbers
coronofacial
cross-generational
cuprous oxide photocell
CZn
deck-chairs
defined type
demand loading
digital attenuator system
dominant gene
donghua
double Compton scattering
eccentric dipole
eta factor
ethylization
extreme poverty
feeder cloud
flat channelling file
flieth
fluorinated paraffins
for the purpose
fuel storage pool lining
have a joke
hydrostatic drives
immunopotentiation therapy
intellectual Marxism
International Polar Year
intrigues
Itzelberg
Jikkoku-toge
lamina of cochlear axis
lightening impulse voltage test
loose one's hold over
lost material
Mahamid
make take objection to
mastergroups
metaplexigenin
michell-banki turbine
middle rare earth
monoallelic
more durable
Moyoy
N-chlorosuccinimide
Nashville Dome
nissley
olenecamptus bilobus
out-heroding
oxidize pump impeller
PDU (power distribution unit)
pericardial cavity (or pericardial sac)
permanent order
pseudomnesia
PsPasswd
public performance
puh-lease
put forth leaves
reacters
refrigerant diuretic
resistance thermometers
roller-head machine
round brush cleaner
Sekondi-Takoradi
side dump truck
soft art
South Koreans
stale bull
state-space model
stenotherm
tangiblenesses
thanx
thermo-geographical
tomoscintigraphy
twin-hull flying boat
two-pole network
type of industry
uk bafta
unstratified
uranium-enrichments
vespa process
virtual I device