[化] 梯型聚合物

Todd: OK. Steven, you're looking at a picture. Please describe what you see! Steven: Uh, I can see a red double decker bus. It's the kind of bus you'll see very often in London. In fact I know this bus is from London because I can see the names: Chel

发表于:2018-12-02 / 阅读(160) / 评论(0) 分类 原版英语对话1000个

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t

发表于:2018-12-24 / 阅读(187) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(216) / 评论(0) 分类 Scientific American(三)月

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

发表于:2018-12-24 / 阅读(184) / 评论(0) 分类 Scientific American(一)月

今天学的词组是strand. Strand的意思是使船只等搁浅。比如,The receding tide stranded the ship。船因为退潮而搁浅了。 Strand也指陷入困境,无法离开。2006年圣诞旅行高峰时期, 美国科罗拉多州的丹佛

发表于:2018-12-30 / 阅读(151) / 评论(0) 分类 英语每日一词

Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s

发表于:2019-01-02 / 阅读(203) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(265) / 评论(0) 分类 Scientific American(九)月

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

发表于:2019-01-08 / 阅读(197) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(257) / 评论(0) 分类 Scientific American(四)月

Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o

发表于:2019-01-12 / 阅读(163) / 评论(0) 分类 2016年VOA慢速英语(九)月

'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded

发表于:2019-01-14 / 阅读(285) / 评论(0) 分类 VOA标准英语2016年(二月)

Double, Double play pause stop mute unmute max volume 00:0005:28repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin. OPHIRA EISENBERG, HOST: Now it's time to

发表于:2019-01-17 / 阅读(219) / 评论(0) 分类 2016年NPR美国国家公共电台10月

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

发表于:2019-01-26 / 阅读(172) / 评论(0) 分类 英语单词荟萃

Edmund Spenser (1552-1599) One day I wrote her name upon the strand, But came the waves and washed it away; Agayne I wrote it with a second hand, But came the tyde, and made my paynes his pray. “Vayn

发表于:2019-01-30 / 阅读(201) / 评论(0) 分类 阅读空间

By Melinda Smith Washington, DC 07 September 2006 watch Overworked Intern report Researchers say that medical interns are overworked Doctors in training -- known as residents or interns -- have traditionally worked long hours with little sleep, as t

发表于:2019-01-30 / 阅读(213) / 评论(0) 分类 2006年VOA标准英语(九月)

The eight Strategic and Economic Dialogue kicks off in Beijing today (Monday), and senior Chinese and US officials gather to discuss a wide range of economic issues -- from macroeconomic policies to industrial overcapacity and trade disputes. Experts

发表于:2019-02-05 / 阅读(158) / 评论(0) 分类 cctv9英语新闻2016年

今天学的词组是strand. Strand的意思是使船只等搁浅。比如,The receding tide stranded the ship。船因为退潮而搁浅了。 Strand也指陷入困境,无法离开。2006年圣诞旅行高峰时期, 美国科罗拉多州的丹佛

发表于:2019-02-06 / 阅读(181) / 评论(0) 分类 学个词

URUMQI, July 21 (Xinhua) -- More than 400 vehicles are stranded following rain-triggered mudslides that cut off multiple sections of a major road in northwest China's Xinjiang Uygur autonomous region, border police said Saturday. Several stretches of

发表于:2019-02-07 / 阅读(170) / 评论(0) 分类 英语新闻

A human hair consists mainly of a protein called Keratin. It also contains some moisture and the trace metals and minerals found in the rest of the body. 人类的头发主要由一种叫角朊的蛋白质组成,并含有水分及在身体其他部分

发表于:2019-02-08 / 阅读(176) / 评论(0) 分类 阅读空间

A human hair consists mainly of a protein called Keratin. It also contains some moisture and the trace metals and minerals found in the rest of the body. 人类的头发主要由一种叫角朊的蛋白质组成,并含有水分及在身体其他部分

发表于:2019-02-14 / 阅读(213) / 评论(0) 分类 实用英语
学英语单词
accomodation heating
acousticolateral
allostimulation
apterous
atmospheric oxidant
back focus distance
Beracilline
besoins
chauri
coeffcient rooting
coin box
cotul
crenation
cutting mulberry shoot
CYRTOSOMA
danger sign
deformably
dew-point composition
dinner suit
dl-tartaric acid
down tree
Elk Lake
end guide
endogenous retroviruses
evaluation test of characteristic
external hemorrhoids
fluorescent character display tube
fucken
functional theory
genus Andrena
genus Roridula
half-circlest
hermetically sealed construction
high speed dynamic random access memory
hormone-receptor complex
immersible apparatus
import path
indemn
internal combustion engine cycle
iriver
isentropic nozzle flow
lap over into
layre
lemon meringue
listen out for
loss and gain brought forward
malacanthids
Marsh I.
mate selection
materials inspection report
microcomputer information system
mixed code approach
mountaintop-removal
natural environment quality
NAVCM
noov
OceanGate
old pence
ophiolitic
ophthalmophasmatoscope
oreoweisia serrulata (funck) de not
out-blossoming
overload protector
oxocines
ozaki
payload bay
pleuston megaloplankton
poachiness
pre-engaged
predeposition diffusion
pro-union
propadienes
Propeller Shaft and Tube Shaft Survey
pumping test
Punakha, Punaka
pyrithioxine hydrochloride
removal ratio
residual effect of pesticide
retrospectivly
roadworthy
saddle winch
santa fe trails
sat tight
secondary-vertical derivative field
short term weather prediction
Sinhǔng-gun
slaughtering weight
slipping of brake
solar spot
subtract statement
surseances
test circuit
the fountain of bakchisaray
There is no smoke without fire.
trolley-dolly
unpunctualness
unsymphonic
vindicatest
weak magnetic material
weather-forecast
wet yourself
yuel