[化] 顺式构型聚合物

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(147) / 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(178) / 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(158) / 评论(0) 分类 Scientific American(一)月

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(164) / 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(212) / 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(164) / 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(214) / 评论(0) 分类 Scientific American(四)月

This is Morning Edition from NPR news. I am Steve Inskeep and I am Susan Stamberg. Russian and Chinese forces today begin 8 days of joint military exercises. Some ten thousand troops are expected to take part, making this their largest joint military

发表于:2019-01-08 / 阅读(231) / 评论(0) 分类 2005年NPR美国国家公共电台

By Robert Raffaele Washington 27 March 2008 A new type of surgery may make it easier for patients who would otherwise require a more invasive procedure. The new type of operation makes it possible for doctors to remove unwanted tissue through a patie

发表于:2019-01-09 / 阅读(181) / 评论(0) 分类 VOA标准英语2008年(三月)

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(122) / 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(233) / 评论(0) 分类 VOA标准英语2016年(二月)

As was the common practice with the gods of Olympus,Zeus and Hermes were visiting the world in disguise.One day they came to a village.At a thousand house sthey knocked,and a thousand times they were refused rest and food and drink.At last

发表于:2019-01-30 / 阅读(201) / 评论(0) 分类 阅读空间
学英语单词
.ocx
agranular leukocytes
allotonic compound
alphabeting
antitau
as bold as blind Bayard
axially uniform heat flux density profile
bill of quantities
BM-14217
Bowman's membrane
brepho-
Burrough
canalized waterway
Cedillo, Embalse de
Chinese persimmon
clastic sedimentary
clotting
colchicum
cold boot
common vetchlings
compress north
Crooke's granules
current as-is
deratted
dynamic statistics
early flooding
electric motor ship
elibank
embryopathia
erythrocyte membrane
esophoric
eyelest
flexural mode vibratio
forced decision
fractioned
frumpishly
glider guns
grammatophora angulosa
hand dog
heat-transfer conductance
heliconia psittacorum
hose cap
infrared interferometry
inward peace
keratonyxis
klatell
lamelliferous
lelaps
limbo dancer
logic microoperation
Mahād
malignant endocarditis
methimidol
metrodira subulata
military teletype network
negative aspect
neo-elitisms
nonlinear mechanics
object-based
odontopathic
opler
out-secondary
plagiophototaxy
play mode
poikilothermia
Porchester
power generating machine
preconceived idea
printing surface
printing wheel
prosecutions
radiobiological dosimetry
reconnaissance exercise
Rossettian
rotary disk bit
rugged construction
Salix amygdalina
saucer pass
sea bed disposal
slender-tailed meerkat
slow-turning
SOA-MCA
stirfries
stomach receiving food and drink
structuralists
subbourdon
Suplacu de Barcǎu
tantalus
tora
tripropoxy-boron
trucking department
tulasnellaceous
typiest
vacuum-type pneumatic micrometer
Valdivia Bank
vasohypertonic
venus exploration
volcansek
waist breast
West Point
white-tailed hawks