[网络] 硅酸钙绝热材料

Good morning Mrs. Hall. If none of your teeth are bothering you, I'll restore the tooth with the largest cavity. 霍尔太太,早安。 假如你的牙齿不让你难受的话, 那么我就把蛀的最厉害的牙补一补。 This is the tooth th

发表于:2018-12-03 / 阅读(98) / 评论(0) 分类 口腔临床英语对话

When Pyrex(公司名) cookware first came out, it was advertised as the ice box to oven, because itwas made of borosilicate glass which could weather large temperature changes without undergoing thermo-shock and shattering. But today, Americans Pyrex

发表于:2018-12-24 / 阅读(58) / 评论(0) 分类 Scientific American(九)月

This is scientific American sixty seconds science. I'm Christopher Intagliata. Got a minute? When Pyrex cookware first came out, it was advertised as icebox to oven. Because it was made of borosilicate glass which could weather large temperature chan

发表于:2018-12-24 / 阅读(55) / 评论(0) 分类 Scientific American(九)月

One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond

发表于:2018-12-24 / 阅读(88) / 评论(0) 分类 2017年Scientific American(二)月

A tornado rips across the Missouri Plains. Winds over 150 miles per hour shred everything in the twister's path. When it smashes a trailer home, one man is sucked into the heart of the storm, spun and shaken horrifically. His limp body drops out of

发表于:2018-12-30 / 阅读(137) / 评论(0) 分类 国家地理2008年

1. President Bush meets Pope Benedict XVI defending his humanitarian record after the Pope expresses concerns about what he calls the worrisome situation in Iraq. On the streets of Rome, thousands of anti-American protestors denounced Bush. 2. It's a

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 美联社新闻一分钟2007

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(78) / 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(93) / 评论(0) 分类 VOA标准英语2010年(八)月

A few months ago the fairy tale came true. 几个月前,童话故事成真了! We announced to the world that we know what these streaks are. It's liquid water. 我们向世界宣布,我们已经知道这些条纹是什么了。是液态水。

发表于:2019-01-18 / 阅读(82) / 评论(0) 分类 TED演讲科学篇

Cassini just a few months ago also flew through the plume, and it measured silicate particles. 卡西尼太空船几个月前又从这些飞溅的水流中穿过,它检测到了硅酸盐颗粒。 Where does the silica come from? 这些硅从哪来的

发表于:2019-01-18 / 阅读(92) / 评论(0) 分类 TED演讲科学篇

As a greater proportion of Britons live alone, the demand for one bedroom, space efficient solutions is increasing. The UK Ideal Home Exhibition has the latest ideas to maximize space in smaller homes and energy saving ideas. Our reporter Wang Xiao h

发表于:2019-01-19 / 阅读(62) / 评论(0) 分类 英闻天下

Science and Technology Plastics There and back again 科技 塑料 旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They

发表于:2019-01-26 / 阅读(84) / 评论(0) 分类 经济学人科技系列

Today a new geo-thermal power station was opened in Kawerau, in the eastern Bay of Plenty. Geo means earth and therm means heat. The power station uses hot steam from the earth. Like the geo-thermal power station at Wairakei, which opened in the 1950

发表于:2019-01-27 / 阅读(108) / 评论(0) 分类 新西兰英语

By Brian Wagner Miami 22 October 2007 NASA officials say possible rains and low clouds may force the delay of Tuesday's scheduled launch of the space shuttle Discovery. In Miami, VOA's Brian Wagner reports the shuttle is set to deliver a new module t

发表于:2019-01-31 / 阅读(74) / 评论(0) 分类 2007年VOA常速英语(十月)

manganese n. 锰(元素符号为Mn) mantle composition 覆盖物的成分 Mercury n. 水星 molten v. 溶化;adj. 熔铸的 monitor n. 监视器,监控 mudflow n.[地] 泥流 Neptune n. [天]海王

发表于:2019-02-02 / 阅读(141) / 评论(0) 分类 英文语法词汇

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(109) / 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(93) / 评论(0) 分类 VOA标准英语2010年(五)月

BEIJING, Nov. 7 (Xinhuanet) -- A huge asteroid will pass closer to Earth than the moon on Tuesday, but experts say there is no cause for alarm. Asteroid 2005 YU 55 will pass about 300-thousand kilometers from the earth. The giant space rock is about

发表于:2019-02-08 / 阅读(84) / 评论(0) 分类 英语新闻

The U.S. space agency NASA's Mars probe Phoenix has detected icy snow falling through the Martian atmosphere. The spacecraft has also discovered material in the planet's soil that is leading scientists a step closer in their conclusion that life pro

发表于:2019-02-08 / 阅读(65) / 评论(0) 分类 VOA标准英语2008年(十月)

Reentry Heat [Why does a space shuttle get hotter on reentry than on liftoff?] 能想象航天飞机穿越大气层时受到摩擦产生的热量有多惊人吗?来一起听听吧。 M:Dolle,we now know that the space shuttle Columbia burned up whe

发表于:2019-02-24 / 阅读(71) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
acidic waste water
aerated feeding culture
aeronautical radionavigation mob-lie station
aggrecan
alkynoates
allophene
angle of departure
anterhynchium flavopunctatum
Appalachian Americans
B gas
balloon tire
bedazzled
bisphenol resin
bleached sand
brush spindle
BTAN
Burgundy trefoil
cageless bearing
capsulosynovectomy
car market
Chandragiri
Ciclofisna
complete laryngotomy
complex data type
current-sensitive color screen
delta voltage
density spread
direct leasing
disinfectors
doublepulse
financially sound
fine mesh solid support
finsider
full flow filter
goes a step further
he'd take a candy from a baby
helihome
hybrid-t
hybridizings
idols of the cave
in the position of
iso-velocity plane
isocyanilic acid
jamaica sorrels
judiciary proceedings
keeved
Kharsivan
La Caňada, R.
legal restraint
logarithmic coordinates
low voltage current
maternal imprinting
merchantile marine
Michaelmastide
microsurger
MNNG
nether world
normal procedure
Nucleus preopticus medialis
orbixes
orkey
parallel scheduling
patient auxiliary current
permanent permeability curve
persimmon trees
photopion
Phytohemagglutin
Poa arjinsanensis
poirier
polyxylene sebacamide
Port Beaufort
posturizes
PRELORT
primary station
proctocolonoscopy
protomedicus
prurigo infantilis
salture
semanticized
semiological analysis
silicate of lime
single-phase half-wave rectifier circuit
single-side machine
Skjervφy
starting up and trial operation for the complete unit
stylise
sulaiyil (as sulayyil)
temperature driving force
the Sun Belt
tooth thickness
torilis japonica(houtt.)dc.
transfer tensor
transgenic mouse
tree frogs
vanabins
vanadous
variolate
virtual storage allocation
vitaliss
weak conservation form
work-disincentives
worketation