聚合物切片

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(52) / 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(77) / 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(60) / 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(78) / 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(64) / 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(107) / 评论(0) 分类 Scientific American(四)月
学英语单词
2-pentenyl
abstinence-based sex education program
adhesio
air trip accident
anchor in rock gallery
authorized pressure
automatic interlocking device
average abundance
banker's shares
bedside radiography
biology of botrytis
booby hatch
Chinese speech information database
circular arc cam
codakia punctata
conformisms
contour map of seam floor
crescent scour mark
curd tension
defoliants
Delphinium erlangshanicum
diyttrium
downwasting
Druidan
dust arrester
electroacoustic thermometer
epididiascope
exocorium
FDBL
febris variolosa
ferias
fiascicular
filamentsaturation
fixed fiberoptic connector
fossae hypophyseos
fringe magnetic leakage
Gaenslen's sig
geeing up
gonosetae
gowster
grape seed oil
hernious
high water level
hoji
Hungam
hydrogen-tight house
hyperparathyroid
in the sense of
in the small hours
incrementalities
industrial training section
isomalathion
junior-high-school
karuk
Krenitzin, Cape
lambly
law of insurance contracts
Lofia
macknin
multi contact switch
multivariate global optimization
navahos
neighbourhood of a point
no-lone zone
noise investigation
non-destructive distillation
normolipemics
Norwalk agents gastroenteritis
not altogether
oraceratubae
out-jet
phlorizin
Proboscidea fragrans
pulling apart
quasiresonance
range of speeds
roadway lighting
Sassoon, Siegfried
sclerodesmia
seethe with joy
self-descriptive
sheeney
shipbuilding press
sodium silicate binder
stand type
subtextless
synchronizing signal compression
technical know-how transfer charge
temptress
torak
totameter
traffic flow
Tresco
unwastable
uretero-
vacant position
vil-
white sales
wind-scrofula
wittol
Woodhall Loch
worms-eye view