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
account-trading
alphabetic telegraph
amim
anisentropic flow
aporic glands
baroclinic zones
Baymakliya
bead fern
Black Canyon
Black Isle (Pen.)
bombloads
bromoviruses
cardinal distance
cascara sagradas
Chaparian
code violation pattern
cold canvas
commercial Internet
compensation and indemnication system
cormican
directional distance protection
disinfested
dog-sized
double lip
DSES
ejector pin with cylindrical head
electronic batching counter
epithelial bodi2s
ex nunc
factory utilities
falls
far from
fermosura
fork beat
gathering speed
genus helvellas
globoidal worm gearing
Glyphenarsine
go north
grecianizes
gripless
high availability cluster multi-processing
high-angle borehole logging
iden
impulse tyep voltage regulator
information and communication technology
ioaddress
ion current
irradiation test of leading assemblies in existing power reactor
islands and islets
iso-intensity diagram
jour
Kakuda-misaki
kukuruku disease
leakage water
Lecherism
licking something
local velocity fluctuation
lurking beneath the surface
macrocyclic polythiaether
make their flight
mariner's needle
menu bar choice
metterniches
miraldi
momentary power failure
mount detector
noncontending
optical coupler
P. & I.
paracolpium
Pars libera membri inferioris
pchloroamphetamine
pectinariids
perosseous
PHVA
pityrogramma argenteas
Pogradecit, Rrethi i
pressure adjusting screw
prograded
pub culture
ribbon carriage
self-boiled limesulphur
shakes hands
shallow underground burial
Spearman-Brown formula
Strftime
sturnia malabarica nemoricola
symbiotically
thematic overprint
Thermidorian Reaction
tocopherol quinone
toolrooms
traffic guardrail
two way input head
unbroachable
undelivered cargo list
unruin
upsettably
velvet worms
vice-marshal
Zarkhin