[化] 聚合物降解

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
a scratch of pen
a. lumbalis ima
adeno-carcinoma of epididymis
aleuroclava neolitseae
angottis
assentementos
balderdashes
blue peafowls
bronchiogenic
cantilever post
cirrhitichthys aureus
closed planting
constant stoke width font
costume designing
cricetomys gambianus
crystalline solder glass
dedendum line
diffuse filter
doin'
double-arm tower
ductus nasolacrimalis
dunk
erasing shields
eustele
euthymella elegans
finetreatment
frontal sinus rasp
General Average Contribution due from Freight
geocentric constant
goniastrea edwardsi
guydyke
hardenability
hot jet welding
inaccurate forecast
indefectibly
invalid date
jaundice obstructive
javanites
judicators
Langenhain
Leadership in Energy and Environmental Design
let you
light earth
Littleville
loan guarantee
loose-eccentric
make through with
Maschil
melanopathy
melaphyre-ash-tuff
microstories
minimum critical mass
mixing and blowing
net wt.
non-return-to-zero inverted recording
on the lookout
opposite edge of a polyhedron
page refresh
paleohydrologist
parallel input serial output
partial dispersion
peta-mole
plate inverse voltage
pop-up advertisement
positive ion mobility
presentationalist
proctodaeum (pl.proctodaea or-dea)
proximity exploder
pubess
public-bus
pyrosmalites
radwaste discharge inboard
Rayleigh number 1
reapproving
reentry funnel
relieved-tap
resturants
retrofit device
ropable
Save Colors As
schisms
septaria porcellana cumingiana
severe acute respiratory syndromes
shipping expenses,freight
singlerow riveted joint
skrowaczewskis
special crossed check
spirit of chloroform
statis
stephanopyxis palmeriana
succinic coa
surprising
theoretical talent science
Tianshu
ticket stubs
uept
Walbiri
Walden inversion
walla
welwous
yellow cedar
Zator