羧酸聚合物

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(78) / 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(106) / 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(90) / 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(91) / 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(107) / 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(93) / 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(138) / 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(61) / 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(140) / 评论(0) 分类 VOA标准英语2016年(二月)
学英语单词
Aldous Huxley
amyloform
antislaver
asparagus knife
astro compass
baconburgers
Beine-Nauroy
Biscoe
black future
bohlmann
breakback contact
brigate rosses
business-system planning
cartoonishly
cheviot hillss
Citrofiarina
closed-circuit deduster
coagulopathy
concept film
connectivity of a kinematic pair
convirtio
customary transit clause
cyanotrichites
Decca data sheets
diagrammatic plan
duquesne
Ebufac
EIPSP
elastic-viscoelastic correspondence principle
endolymphytic duct
ensemble of function
epilayer
export-related loan
extra-high-tensile steel
fall off
fall streaks
fast burst reactor
fedins
fire step
fleece-lineds
Fords Bridge
free available residual chlorine
funboards
goti glacial age
harmonic flux
hechtsbergite
hollow plate
hybrid capacitor network
imipranil
intelligent threat
jugal suture
kee-jerk
Kshatriya
lateral superior genicular artery
lateralis anterior sulci
Laudissine
lemon-wood
light-producing
lloyd's certificates
longitudinal travelling wave
memory-intensive
mercury switch
molecular speed
mopheads
moscow ballet school
neuroimmunologic
nitrogen acid anhydride
noise eliminator
nonarthra variabilis
nonobstructive
normative quartz
oral cancers
orsellinates
over-qualify
Pinehouse L.
Pnom Penh
proletarianized
putting on
rate heat flux
redistributive policy
reentrant corner
remote-controlled monorail system
resin jalap
restructuring analysis
revenue below the line
Savannah cat
scullers
slide rule diagram
sodium lanthanum sulfate
solid strutting
spiral tube manometer
tail of the peak
telopodite
thermal aureole
took my hook
top pintle
torch fishing
transitional cells
turbo fan
unpreachable
us hog
Wiesner's paraganglion