聚合物合金

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(54) / 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(81) / 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(63) / 评论(0) 分类 Scientific American(一)月

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(79) / 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(65) / 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(109) / 评论(0) 分类 Scientific American(四)月
学英语单词
ALRDY
American thus
anti-intellectualist
application data file activator
asymtope
automatic sending
be an open secret
bend it like beckham
besmokes
Bihor, Vârful
black dogwood
bolt threader
bomb blanket attack
bravity
buckling down
buffest
Calymmatobacterium granulomatis
candlehour
Chain debts
common objective
compound-selective detector
confidence in work
counter mechanism platform
crutch hole
cumulative sum
cut off frequency of filter
cybertrespass
debye approximation
decihenry
Delwāra
disappearance
dorsa mesentery
dredging pump efficiency
embryogenic
end contact method
exhaust gas turbo-charger lubricating oil cooler
faades
fasciculi transversi (aponeurosis plantaris)
food-deficiency disease
franz kafkas
free Internet service
Gigli, Beniamino
haemofilters
helminthic biochemistry
Heritiera angustata
holding-out coil
horn-pipers
Hungerford
i love her
infrared spin-scan radiometer
involucral scale
irrotational vector
kleptophilia
lack of side fusion
letter symbol
lichenoid keratosis
limited-information method
lipid theory
microstrobili
minimum radius at ground level
myocardial ischaemia
orthogonal array
paired selection
passive homing guidance
Peloplocaceae
peloridiid
penur
Percy Walker
plasmalemmae
play one's cards poorly
pontias
progressionist
puff of air
quick disconnecting couping
resistance start motor
retia venosum dorsale manus
ringlikest
rowdedows
run test
screw-threading tool
self-punishing
single-honour
slow-release fertilizer
social insurance fund
superchip
sweat in hold
tectonic maps
theoretically relieving capacity
tinsmith solder
tip the balance
transistor relay
Trumbiculidae
ultrafine pulverizer
unkeys
vanderhoof
vasoprotectives
victimologists
waiver of sanction
water-wave
winetasting
witti