环氧聚合物

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(74) / 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(104) / 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(85) / 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(87) / 评论(0) 分类 60秒科学

1、一字螺丝批 slot type screwdriver 2、一点透视 one-point perspective 3、二合一黏合剂 epoxy resin adhesive 4、二合胶;混合胶 epoxy glue 5、二维的;平面的 two-dimension

发表于:2019-01-03 / 阅读(75) / 评论(0) 分类 英文名句短语

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(104) / 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(92) / 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(134) / 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(59) / 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(138) / 评论(0) 分类 VOA标准英语2016年(二月)

GWEN IFILL: Next: replacing surf shops with start-ups, as tech titans move to catch some rays and some waves.Steve Goldbloom reports. STEVE GOLDBLOOM: In San Francisco, computer programmers are like rock stars. Here in Los Angeles, the rock stars are

发表于:2019-01-27 / 阅读(79) / 评论(0) 分类 PBS访谈商业系列
学英语单词
acetum cantharidini
acid resisting casting
additional bending moment
ajaeng
Akiyoshiella
albumimeter
angular subtense
astrogeological
atom-powered sub-marine
ballet m?chanique
bandy words (with)
bend to it
blown over
calnexin-t
cerebrovascular system
Chhindwara
consumption parameter
contract for the payment of goods by instalments
Cooley
cued recall
cyanide carburizing
direct product of distributions
Donau
El Ronquillo
extraterrestrial material
fleischig
frou-frou
froups
granny knots
grass fish
gross capacity
guided bend test
Hamilton's equation of motion
Hans. Pr.
heart regulation
Hensen's duct
histidomycin
invariant bilinear form
ishtar (assyria)
iyse
legal code
levulinic
living computer
loom beam
maggie's
megasuccessful
ministerships
misinterpretable
Mopelia
Mytilidae
narrow face
nodon rectifier
oleum ligni santali
otioseness
Ottenheim
paired electrons
paragon
paratransversal plane
Personal Intelligent Communicator
pestis bovina
Phascolarctinae
physical openness
physogastry
powder room
principal coil
pyn-
quintillionth
radio phonograph set
recuperative heat exchanger
return movement
roof-spaces
scrubber condenser
servewares
short hundredweight
spiced
spot light source
square-wave carrier
straight leaded gasoline
Sufized
Symplocos modesta
taken our eyes off
thalsimine
the noon of night
timber market
time payment debt
total metabolism
totalitarian technological society
transistorchip
unangelically
utilities building
vassiliou
Verschaffeltia
visual alignment
Wall have ears.
want me
warning radar antenna
washing water inlet
Wilder's diet
worlds
xanthogranulomatous cholecystitis
xanthorhamin
Zwaagwesteinde