[化] 星形缩聚物; 星形缩合聚合物

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(75) / 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(62) / 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(105) / 评论(0) 分类 Scientific American(四)月
学英语单词
abelisaurus
abuse of tax shelter
Adam's Bridge, Adams Bridge
adjectival phrase
alkaline manganese cell
Aogaki
arenose, arenous
atomic industry
bad landss
bedcords
blocking component
blottering test
Brittas B.
burnnet reading survey test
call sth back
capitals of south carolina
Capual I.
centicoulomb
chain-chew
Chamberlain R.
check by sampling
chlorinated polyvinyl chloride
colour encoding camera
concomitant radiation
Const.Sp.
Curwen
cut a sorry figure
depression syncope
dismingle
dynamic phase error
edible roots
encrypt data
eschscholtzias
Etorofu
exhaustion of state remedies
expanding drum coiler
external contribution
extra burner
Ferula gracilis
Flying Spaghetti Monsterism
forfeited securities arising from loans
gage complete penetration
gibberellinglucoside
GMA pallet
had time
hell-hound
hist
holocene climate
hyalgen
hypnody
intermediate products
irradiation rig
karski
Knud Rasmussens Land
Landou's sign
leninsk
limbecks
lower plant
Macormick
magetry
malekzadeh
method of delivery
micritize
microtubule system
mimo
noncaregivers
nubilus
one-boxes
package-tours
paedogamy
parallel financing
perfect elasticity
pickins
pierre corneilles
plug of clay
pump housing
quick-setup
read release
renker
rimando
river silt engineering
Roget's
Sallūm, Khalīj as
salvage lorry
sandivers
Santorini's canal
scan test
severe contamination
shore-patrol
side-shake digger
single spark structure
soldering salt
split coupling
stopping criteria
sunning net
swackest
task-relevant
there's only one
threshold limit value occupational
UK Border Agency
untofore
wire covering