[电] 分层绝缘

CHAPTER ONE [00:44.25]READING [00:45.74]Page 2 and 3 [00:48.43]THE YOUNG GREEN CONSUMER GUIDE [00:51.51]Review by Tony Ma [00:54.62]This book says that our world is in danger [00:59.32]It is vital that we do something to save the earth [01:04.21]Firs

发表于:2018-12-01 / 阅读(566) / 评论(0) 分类 上海牛津初中英语九年级

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2018-12-04 / 阅读(207) / 评论(0) 分类 听一分钟英文-O

(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(175) / 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(845) / 评论(0) 分类 英语范文背诵20篇

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(315) / 评论(0) 分类 2011年NPR美国国家公共电台10月

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(264) / 评论(0) 分类 英语课程学习计划和讲义

Scientists have found that levels of a now-banned chemical are rising again in Earths atmosphere. The chemical is called CFC-11. It is the second most common kind of CFC, short for chlorofluorocarbon. Chlorofluorocarbons were once widely used in many

发表于:2019-01-03 / 阅读(210) / 评论(0) 分类 2018年VOA慢速英语(五)月

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(167) / 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(187) / 评论(0) 分类 2010年NPR美国国家公共电台3月

美语中,一些感叹词的意义跟字典上的解释不尽相同,要在日常生活中才能体会到。让我们看看以下几个例子: Oh的字典意义是嗬;哦;哎呀,表示惊讶、的恐惧等。但将这个词连起来用,却

发表于:2019-01-09 / 阅读(194) / 评论(0) 分类 实用英语

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(260) / 评论(0) 分类 美联社新闻一分钟2010(二月)

Earth's Ozone Layer Shows Signs of Recovery 地球臭氧层出现恢复迹象 The new report says the Earths ozone layer is showing signs of recovery. Ozone is a form of oxygen. It is found in the air we breathe and in Earth's atmosphere. The ozone l

发表于:2019-01-12 / 阅读(220) / 评论(0) 分类 2014年VOA慢速英语(九)月

Whales, seals and walruses stay warm in chilly water because they have a thick layer of blubber. We humans rely on something like blubberneoprene rubber wet suitsto spend time in cold water. But the thick versions for really icy water are heavy and u

发表于:2019-01-17 / 阅读(191) / 评论(0) 分类 2016年Scientific American(十)月

A: May I exchange this DVD player? B: Certainly. Do you have your receipt? A: Here you are. B: Now, why do you want to exchange it? A: It won't play a DVD. B: I'm sorry. I'll get you a new player. A: At first, I thought it was me. B: Okay, here's a n

发表于:2019-01-20 / 阅读(205) / 评论(0) 分类 购物英语对话

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2019-01-21 / 阅读(212) / 评论(0) 分类 纯正英语一分钟

HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: Scientists studying climate change in Antarctica reported this week that the hole in the protected ozone layer of the earth's atmosphere has shrunk. The discovery of the hole in the mid-1980s led to a wo

发表于:2019-01-27 / 阅读(168) / 评论(0) 分类 PBS访谈环境系列

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(144) / 评论(0) 分类 经济学人科技系列

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(171) / 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(227) / 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(201) / 评论(0) 分类 新西兰英语
学英语单词
.cgi
acanthium
acephalostomia
actual air consumption
allchromasis
Anano, Pulau
annular electric scram magnet
arthroplasty of first metatarsophalangeal joint
azure dye
barrel of treacle
beam light
Berlioz, (Louis) Hector
breezed through
cantina truck
card verification value
center flux
cold war era
combined diagram level
conflicting evidence
congenital essence
Controlling Person
corpgeeks
cream-wove
creamos
cyanobactins
DBW (decibels relative to 1 watt)
definite-time delay operation
diaphragm packing ring
disgaol
documentary remittance
double herringbone
economic disparity
exogenous cycle
extra fine thread
Frankel-Weichselbaum pnumococcus
free-fileld calibration
frownier
Galton system of identification
get into trouble
gleicher
Greuling-Goertze approximation
haematobium
Hainan Island
hapliod cell
hemorrhagic enteritis
high speed cam
high-speed transport
high-sun
histoclasia
incantations
insulating oil dielectric strength
intercontinental traffic
interest-free loan fund
kinematically coherent fluid region
laminated pole piece
lay claim to
learning by machine
mazzulla
message protocal
methylmalonic
non-actions
not a hundred miles off
numerical process control system
on the principle of
one yourself
pipe friction loss
plaster shooting
Pokrovskoye
polyvinyl acetate adhesive
Preminger, Otto
problem state
pulse pressure-charging
quick steaming unit
quoyte
reply on
revision of dimension
rostral gland
sculks
shop hours
Spokane River
sportsbooks
stopgap loan
swab in
tinwhite
to an extent
topheavily
trial sale counter
tympanic tuft
underdelved
variable Chinese rose
videoswiping
vinter
volcanic belt
water boiler feed
weighted oscillator strength
weltfish
would pass in a crowd
ybarra
Zadonsk
zinc-schefferite