环氧聚合物

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(184) / 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(209) / 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(182) / 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(194) / 评论(0) 分类 60秒科学

1、一字螺丝批 slot type screwdriver 2、一点透视 one-point perspective 3、二合一黏合剂 epoxy resin adhesive 4、二合胶;混合胶 epoxy glue 5、二维的;平面的 two-dimension

发表于:2019-01-03 / 阅读(179) / 评论(0) 分类 英文名句短语

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(254) / 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(191) / 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(246) / 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(154) / 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(277) / 评论(0) 分类 VOA标准英语2016年(二月)

GWEN IFILL: Next: replacing surf shops with start-ups, as tech titans move to catch some rays and some waves.Steve Goldbloom reports. STEVE GOLDBLOOM: In San Francisco, computer programmers are like rock stars. Here in Los Angeles, the rock stars are

发表于:2019-01-27 / 阅读(188) / 评论(0) 分类 PBS访谈商业系列
学英语单词
a sheet of paper
aconityl phenetidine
acrotheater
actinomycosis
additive colour process
apical pneumonia
Avantyl
axle adjuster
baccata
beet riding plough
berch
botryobasidium asterosporum
brass low
Brazilian blowouts
breeze in
cannon lock
capital and drawing account
caput humerale
Castanea henryi
chefs d'oeuvre
coal dump
conjugate elements
consumer is the king
Csakvar
deep sea beef
desertifying
dinitrogen tetroxide
directly-right recursive
easy-to-build
elliptic modular function field
ensorcell
exchangeable ion
extrogenous pigmentation
fashion element
fire-resistant housing
flomoxef
For. Pr.
frottolas
fumigatum
girder and beam connection
glucinum (beryllium)
grassfield ecology
Gunter Grass
hydrogenator
impotence, impotency
In Aménas
indent from left
indentation depth gauge
isobutyl carbonate
istope intracavitary
jagmohan
Jooz
lactuca sativa longifolias
leptokurtics
lion cubs
local benefit taxes
macrodactyl
magnetar
makes believe
measurement voltage
Menomonee River
mixed design procedure
multiplexer polling
node initialization block list
not bother to do sth
offence against person
oye
papilioform
perempting
petal stool
photoelectric scanning moire grid
porkholts
Porrara, Mte.
possessio civilis
prevention of cruelty
R C constant
reserve clause
roste
sallop screen
Santa Columba de Curueňo
santley
saphs
saturated calomel electrode
Searle
semioticist
sinusoidal capillarys
small text
spun dyeing
St Simons I.
starting feint
sternochetus mangiferae (fabricius)
theatre-goers
throstle-frame
timber saw
took our hook
trichonosis cana
tuff breccia
tyre gauge
Watcom
water injection rate
white racist
ZAHB