[化] 弹性聚合物

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(78) / 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(61) / 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
absolute spectral transmission
active amyl alcohol
add-forced cable system
airfield performance
amino-acylase
antifascisms
audio-communication
basic law
beau brummells
bendels
benzazepine
BI
biostereometrical technique
Bouquet of orchids
Cepphus
chemical alarm
chokon
Circuit restoration.
colour-matching functions of a trichromatic system
consentment
coupers
critical service
cubond
cutaneous part
delbecq
discourteously
disk interface
drill hole sampling
dual-site mechanism
Dutch carpet
end of number
exametron
fabric of migmatite
farm antibiotics
fistula vesico-cercico-vaginal
float gauging
hegeduss
hexadecamers
home pylon
humeral veins
image compensation
immune root stock
impressio lienalis
inhigh
international subcontracting
ionization fission counting
istra-oral bite film
jettison gear
johan keplers
Kalety
left-hand cylinder
lithium peroxoborate
magnetic print-out
major angle
marshalling of assets
maximum distance from shore
mixoscopias
multiple-story
Munich Pact
native hydrocarbons
native knowledge
negative side
news agencies
North Africa
offset speed-regulating mechanism of wind rotor
oil forge
optional gear ratio
order of operations
pandani
peaberries
plaxtons
posessions
postcoxale
QGA
recombinant vaccine
removable disk pack
restructuring of record
Richlea
Sandhem
semi classical theory
shelf dryer
side pipe
sin eater
spare me an hour
standard UNIX kernel
sulfur-bearing lubricant
Tapiridae
Temeposulfan
thermoelectronic emission current
track geometry measuring trolley
travel-stained
Turtas
tychies
UIbricht sphere
undercoater
undistracted
up-grinding
vectorization of object codes
vincke
vinylstyrene
violeter
websterite porphyry