聚合树脂

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
a cover
Actinomyces roseus
Ahiman
aroskar
astrmonk
auditing around computer
aurian
backward link field
bacteriological weapon
billiard cloth
blacktails
blending character
braatz
buoyancy correction of weighing
cafeteria benefit
calling rate
celestial bodies motion
centrolophids
Cholan
cold reducing mill
compact pack ice
concave cam
contributing region
coumaron
country fuck
damper-cage starting
descensus uteri
diazo paper
Dicloravit
Eastman, George
edge minting clamp
embrocation
emphysematous anthrax
epimysiotomy
f-actins
federoff
fontanometer
Gadexyl
genus ichthyosauruss
GM_least-the-least-at-least
have not a penny to bless oneself with
Highmore's antrum
hypergammaglobulinaemic
impar
in pursuit
interination
isocalamendiol
jnani
kiln annealing
knock the living daylights out of someone
lever block
liang y?an hsiu
Londonwards
lulac
lutchuensis
merridale
mesoporphyrin scavenger
micropathologically
microperoxisome
mobile automatic programmed checkout equipment
multi-host configuration
multiple endocrine neoplasis
neoscopelus macrolepidotus
novaculite
oral implant
Oresitrophe
oximell
oxytropis myriophylla (pall) dc.
Pedicularis likiangensis
pilot nosing
postmortem routine
praias
Qingbaikouan System
rapid condensation
SandoPak
scener
semiaxial thrust
separated aggregate
sheared hysteresis
slurgalling
social enquiry report
standby purifier
state variable equation
step daughter
streu
sync control
terrace wall type reforming furnace
thijs
time redundancy
trace minerals
traumatosis
traveling-wave
troust
turn up my nose
tyrannosauroid
veiling
wintry mixes
with one's whole heart
wool dye
wu ko
xenon equilibrium concentration
zende