【材料学】丙烯腈聚合物

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(147) / 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(178) / 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(158) / 评论(0) 分类 Scientific American(一)月

Lowering the Ceiling on Roof Energy Losses 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 traditional black asphalt roofs heat up in summer and s

发表于:2019-01-02 / 阅读(165) / 评论(0) 分类 60秒科学

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(213) / 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(164) / 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(214) / 评论(0) 分类 Scientific American(四)月

Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o

发表于:2019-01-12 / 阅读(122) / 评论(0) 分类 2016年VOA慢速英语(九)月

'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded

发表于:2019-01-14 / 阅读(234) / 评论(0) 分类 VOA标准英语2016年(二月)
学英语单词
a large amount of
abkhaz
above the line expenditure
acrbonization
admission date
adoptive immunotherapy
almss
Arneth's cunt
automatic duplication
conformitant
corporate logo
credit tranche position
cross-inlet water turbine(cross turbine)
cutis tuberculosis
cutting away wreck
diethylenediamine
diffraction line
discharged
discount factoring
double accounting
ecosophers
enforce the law strictly
euerose
Expected value of perfect information
explosive article
fidelity
flower pot bell shape
flyawaier
forevacuum pipe
fuel tank capacity
gelate
general confederation of labor (cgt)
guachamacin
heat synchronization
horizon scan
hypolekocytosis
incoming connection pending
inertia field
INTEREST, INTERESTED
JDEC
kieke
lacalle
Larmor
legitimi haeredes
leong
local initiative
long-range program
loose rock fill
magickers
mancave
manohars
manualisms
marginal operation
marine thermometer
maxwell electromagnetic theory of light
measuring nozzle
Mederdra
medium loading
medium organzine
micrograined
musselshell r.
Myroxylon balsamum
nonexpressers
oil-rich
open-cut drain
orpement
over-solicitous
postpolitical
pulsation weld
pustie
put one's neck out
radiation dominated universe
radical dissection of thoracic tuberculous sinus
railway bogie
rather level areas
real computer
record sleeves
refertilization
reflecting lobes
Rehbach
reliability evaluation for generating equipment
reverist
revivors
rotating thyristor
Schauenburg
self-fields
Soonee
spanishing
stotland
switchboard fuse
tadler
tetramethylammonium
the security
time of dissociation
tone-group
trumpeldor
two-element array
walking goby
Wangensteen tubes
WAPC
wobbulate
zsinj