[化] 无规立构聚合物

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(184) / 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(211) / 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(182) / 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(198) / 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(261) / 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(195) / 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(253) / 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(159) / 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(280) / 评论(0) 分类 VOA标准英语2016年(二月)
学英语单词
75th
alstyne
ardass
atmospheric particles
attyn
auto-pilot
behang
benefit by
bills receivable account
biocolonialism
bitumenite
Brassica nigra Koch
broomhall
Busp
butterfly capacitor
calciouranoite
cha cha
civil sessions
clangours
coalville
conculcated
copper wire tie
core switch circuit
daylead
division Tracheophyta
draws up
electrically alterable storage
encrinal
forenisc immunology
four high continuous hot strip mill
gottwaldov (zlin)
granny flats
grind-it-out
guessings
haematinometer
head of consular post
idealizations
indicative(of)
isopropyl lactate
jorunna rubescens
keratosis
laia
Lamb County
Lampozhnya
Lotschberg Tunnel
lump-fish
magic-carpet
magneto exploder
malagmas
maleylated
mastodon
mengo
microinvalidation
micromachining
missionary school
mobile TV-system
muddle away
neogaikum
nothura
Nurosurgery
ocean states
over-shave
place reliance upon
pleurenchyma
Puccinia szechuanensis
quasi elastic force
radial carpal bone
radio news release
reassembly lock-up
receiver protective device (reprod)
reprocessing loss
residual flame time
roles and responsibilities
Rules for Sailing in the Fog
Sapasa
sea burial
secondary compensator
self-sensation
shade-tree
sickenest
spectral image generalization
St Mary's Bay
starter relay switch
stingfish
takadiastase
talabeclands
tea laser tea
terminal disc
Thalleoquin reaction
three-phase rotor
trench sheeting
uninterruption
vanadium iron
vxi-based mixed mode vlsi
Waring problem
wigo
Windows Metafile Format
Winterburg
yadongensis
Zemetchino