氨基甲酸脂聚合物

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(165) / 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(213) / 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

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(234) / 评论(0) 分类 VOA标准英语2016年(二月)
学英语单词
.qtp
aglaiol
aimlessnesses
ample rainfall
annual screening
Arenig Fach
authorized translation
balance method of stores accounting
be implicated in
biholomorphically
blepharicerinae taiwanica
brake shoe adjusting cam bolt
call attention to
capitants
CEATEC
charol
colliquative sweat
common queue server
conscience-clause
core assembly
covins
coworking
cuernavaca
cut-off filter
cycle stealing
cylinder-slot type water-removing machine
dark spot defect of laser
debt warrant bond
decanedioic acid
deflection anomaly
delayed duplicate
dial up Internet access
dog someone's steps
dorts
dual and fertilizer boot
e-messages
emmeram
Ethernet network card
extremely high freguency
fetch home
front bumper arm grommet
G-flow
growth survey
high-pressure spinning
Humboldt County
International Peace Garden
inverse distribution
israel pound
Loewi, Otto
maggot-pie
magneto strictive transceiver
maintenance procedure
Maple City
marketman
maximum-wind and shear chart
McCarroll Peak
mesoconids
numeraries
oliganthous
on-line debug program
oryzaephilus mercator (fauvel)
pathologic nous pulse
plain ended screw
Plethodontidae
porous diffuser
powder filler
proctosimoidoscopy
proterozoic group
prudent limit of endurance
put things straight
Quatre-Bras
Road-net
rope-type head
rotary helical screw compressor
sad clown
sample-and-hold amplifier
scientometrist
Scrophularia dentata
seveso
slag emulsion
sottedness
spreader block
statically
stilters
stormfully
strait jacket
strangeling
subdivision draft
SUC-DGC
surface imperfection
TDU
teeth-roller cracker
tetramethyl orthosilicate
third-inning
traversing gear
tutton
tyrannity
unblissfully
unit vector field
vacuum cooling
wbis
windowable