重覆使用低温表面绝缘

Researchers have made some interesting discoveries near Antarctica. A team of scientists from the British Antarctic Survey and University of Hamburg have published the first comprehensive inventory of sea-and-land animals, near the tip of the Antarct

发表于:2018-12-03 / 阅读(62) / 评论(0) 分类 自然百科2008年

[00:00.80]When the atmospheric concertrations [00:03.16]of these gases increase, however, [00:05.84]more heat is trapped and the Earth's [00:07.92]temperature rises. [00:10.37]Over the last 100 years, [00:13.01]the global average temperature [00:15.1

发表于:2018-12-13 / 阅读(105) / 评论(0) 分类 北师大版高中英语模块8(选修)

Technology Report - How to Make Your Own Solar Water Heater This is the VOA Special English Technology Report. Solar water heaters are used around the world and are not very difficult to build. The system we are going to describe is based on a design

发表于:2018-12-16 / 阅读(77) / 评论(0) 分类 2011年VOA慢速英语(四)月

Our atmosphere is in constant motion; the moving air that causes our weather circulates between the ground and 50,000 feet. It is the sun that drives this movement. When solar energy reaches earth, it heats the surface and atmosphere, but it does so

发表于:2018-12-27 / 阅读(63) / 评论(0) 分类 探索与发现2014年

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(105) / 评论(0) 分类 VOA2003(上)-社会广角

DEVELOPMENT REPORT – How to Make a Solar Water Heater By Gary Garriott Broadcast: Monday, November 29, 2004 I'm Gwen Outen with the VOA Special English Development Report. Solar water heaters save o

发表于:2019-01-02 / 阅读(116) / 评论(0) 分类 农业与发展

-Im Chris Kaufman and I here with Justin Kasper, who works at Smithsonian, hes an astrophysicist at the Smithsonian. And he's won a project thats gonna launch a probe at the sun, specifically the Solar Wind Electrons Alphas and Protons investigation,

发表于:2019-01-07 / 阅读(88) / 评论(0) 分类 万花筒2013年

Lesson 58: [00:03.40]Stop Pollution!In North America, [00:08.96]many students help their schools make less pollution. [00:14.73]They join environment clubs. [00:18.99]In a club,people do things together. [00:24.03]In an environment club,people work t

发表于:2019-01-09 / 阅读(181) / 评论(0) 分类 河北加拿大版初中英语

This is the VOA Special English Development Report. Solar water heaters are devices that use energy from the sun to heat water. Solar water heating is used around the world. An example of a rooftop solar water heater being built in South Africa The

发表于:2019-01-11 / 阅读(100) / 评论(0) 分类 VOA慢速英语2009年(四)月

By Lisa Schlein Geneva 16 February 2007 The Geneva-based International Organization for Migration reports that over the past three weeks alone almost 18,000 people have been displaced in Iraq, and it expects the number to grow much higher as the year

发表于:2019-01-12 / 阅读(105) / 评论(0) 分类 2007年VOA标准英语(二月)

As Hong Kong struggles to build an environmentally friendly city, one professor is studying ways to help cut carbon emissions and lower electricity usage by covering the city's rooftops with plants. Jim Chi Yung, a geography professor at the Universi

发表于:2019-01-13 / 阅读(90) / 评论(0) 分类 VOA标准英语2010年(八)月

Study: Warmer World Will Produce Fewer Clou 气候变暖导致云层变少 With rising global carbon emissions, the planet will heat up and cloud cover will dissipate, according to a new study. The concentration of heat-trapping carbon dioxide in the

发表于:2019-01-14 / 阅读(71) / 评论(0) 分类 VOA标准英语2014年(一月)

When summer hits, I dread jogging outside. But a study finds that elephants can be in true danger in the heat. As creatures get bigger, they have smaller surface area to body volumn ratios. Fully-grown Asian eleplants thus pack a lot of mass into a b

发表于:2019-01-20 / 阅读(80) / 评论(0) 分类 Scientific American(五)月

Cars And Lightning You may have heard that your car is a safe place to be in a thunder storm, and this is true. You might not know the reason for this, however.Well learn exactly what would happen if lightning struck your car. At first you might thin

发表于:2019-01-22 / 阅读(51) / 评论(0) 分类 英语时差8,16

The fridge is one of your homes biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one of the best insulators known. But vacuum-insulated panels are too pricy for widespread use. Enter

发表于:2019-01-30 / 阅读(119) / 评论(0) 分类 60秒科学

AGRICULTURE REPORT - Solar Food Dryers By Gary Garriott Broadcast: Tuesday, March 01, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Drying food is a simple, low-cost way to keep

发表于:2019-01-30 / 阅读(80) / 评论(0) 分类 农业与发展

WASHINGTON, May 1 (Xinhua) -- Scientists from IBM on Wednesday unveiled the world's smallest movie, made with one of the tiniest elements in the universe: atoms. Named A Boy and His Atom, the movie used thousands of precisely placed atoms to create n

发表于:2019-02-04 / 阅读(59) / 评论(0) 分类 英语新闻

WASHINGTON, June 23 (Xinhua) -- Last month was the hottest May since record keeping began in 1880, the U.S. National Oceanic and Atmospheric Administration (NOAA) said Monday. 图片1 The combined average temperature over global land and ocean surfac

发表于:2019-02-06 / 阅读(72) / 评论(0) 分类 英语新闻

The environment of the city is getting worse and worse today. There are wastes, air pollution and so on. What can we do to save our city? About the wastes, we should sort the wastes, to see if they can be recycle used; use the reusable shopping bag i

发表于:2019-02-18 / 阅读(60) / 评论(0) 分类 英语作文

Maybe. A change in barometric readings may be part of the reason: Atmospheric pressure often drops right before bad weather sets in; this shift could cause body tissue to expand, which can lead to swelling and pain. 也许吧,气压变化有可能是

发表于:2019-03-06 / 阅读(147) / 评论(0) 分类 英语听力广播—Listening
学英语单词
'Ain el Beida, El
Agrimonia pilosa japonica
anchor knot
angle fishplates
animal depot-fat group
axoid
bachelor of art
Baculoviridae
belser
best bower
blockbuster
broke the seal
Byam Martin Chan.
capsule
carburizing salt
caryophyllaceous
change system settings
colour density
conglobes
convective index
darrons
de-leveraging
demain
design by committee
design overpressure
dosalane(c.i.p.w.)
dressguard
dust-collection
early start
eatwells
evaporation feed liquor
falecida
false twist textured yarn
filtered oil
flat-packeds
fracture of skull
fraising
fusarium oxysporum sesami
ground-effect
hand barring
height above ground level
hypacusia
intrinsic shrinkage
juice gravity
kiddy
kigelia
lavamunds
life combination suit
liponic acid
logical-truth
maharaja
mass flow density
maximum permissible suction height
megrahis
methylglycerine
micrometer stop
milliskin
missile fire
motorlike
Multiphot
Napicladium
neutron current density vector
non-interchangeable
oopodeus
passing of satellite
phonocentricity
pressurized system of ventilation
quasi-craton
raddeamine
ravetz
recombination mechanism
reduction admittance matrix
reticular formations
right-of-way survey
Saint Emilion
sea-lawyer
self-referent
semi duplex process
serpents
shaft governor
signal-box
Sireniki
smizzed
standard interface for computer-aided design
starting conditions
submarine countermeasure
tact system production
take the throne
tearse
tie member
to go there
Tom White, Mt.
trucklet
twinkiling
uniaxial tensile test
unspecified bit rate
Vansant
waits behind
who's to say?
whoopy-doo
wine-apple
Wormwood Scrubs