[化] 光活性聚合物; 手性聚合物

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(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(79) / 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(62) / 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(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
'ha
-phil
1-nitrononane
alatus
allegorical significance
annual parallaxes
antiaircraft bomb
asbestos fiber filter
attribute properties
auxiliary language
Bataklιk Gölü
biohermal limestone
BUFUing
cephalic index
circular washer
colour components
commercial investment
contingent trust
contra-flow condenser
decerebrize
decoy attack
double cap insulator
duplicating check
embeddable chain
Empoasca pirisuga Matsumura
enlargening
feed holes
flintoff
future net revenue loan value
gastrojejuno-esophagostomy
general engineering system
glyphis cicatricosa
haploidisations
harmonic operation
health care network
heat screen
heat transport fluid
heavy (precipitated) calcium carbonate
hemorrhoid ligature set
heteropolysaccharidase
high-hole
hiliciopsis henryi (diels)w.t. wang
hinge cell
hood baffle
infectible
isovaleric acidemia
Karlovy Vary
knocking explosion
linearism
linesman
loop coupling
lower cover
Lower Mississippian
lower vacuum
luminousnesses
Midtone
modulus of water glass
monospondylic
multiuser system
multlvariate analysis
Namakzār
net melon
packing clause
Palmelloid
part-whole correlation
phytosiderophore
Poa parafestuca
poet laureate
Pozsony
preliminary filter
primary drainage scanning curve
reencourage
rei.com
relative metabolic rate
removal of auditor
rowenta
rozins
sabretooth
saintjust
Salindres
segment control word
self coloured
shaft of fibula
shearrer
simple chronograph
small scale
smooth zone
sound concentrator
street planting
sulfathiodiazole
tenthredopsis insularis insularis
theory of moduli
thickness error
thin person
traveling-wave field
unfulfillings
ungerminated
unit cell dimension
vapour tension meter
vertical reciprocating cryogenic liquid pump
whole plant
yanbaru