玻璃状聚合物

AGRICULTURE REPORT – February 12, 2002: Sharpshooters By George Grow This is the VOA Special English AGRICULTURE REPORT. Farmers in the American state of California are guarding against an insect ca

发表于:2018-12-07 / 阅读(183) / 评论(0) 分类 农业与发展

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(203) / 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(245) / 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(201) / 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(225) / 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(290) / 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(213) / 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(282) / 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(193) / 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(314) / 评论(0) 分类 VOA标准英语2016年(二月)

Matt Duke是一个自学吉他成才的歌手。《Kingdom Underground》是Duke的第一张专辑,在此之前他还发行过《XYX》和《Winter Child》。Matt Duke的音乐会让听者体味到前所未有的感觉,会给你意想不到的变化

发表于:2019-02-11 / 阅读(163) / 评论(0) 分类 天籁音乐

Matt Duke是一个自学吉他成才的歌手。《Kingdom Underground》是Duke的第一张专辑,在此之前他还发行过《XYX》和《Winter Child》。Matt Duke的音乐会让听者体味到前所未有的感觉,会给你意想不到的变化

发表于:2019-02-20 / 阅读(175) / 评论(0) 分类 金属
学英语单词
antiferromagnetic
automatic viscosity controller
blind story
burgleyer
canadian fleabanes
cast resin type instrument transformer
catch of xolvent
church planters
cib
clean balance sheet
cns (college of nuclear science)
Colmberg
combustion nucleus
contracted multiplication
corrector finger
cranford
Dankov
dementedly
dibutyl disulfide
diformyl
dormant mine
earthquave
electrified railway
electropneumatic brake circuit
enriched gas oil
enterogastrones
erotylids
feiyangcao
final screening
final working
foregoing crop
foulstons
franchises
gastrochaenid
go matrix
great lakes states
ground control landing (gcl)
Handali
handball playground
hauling chain
hyaline degeneration
indenone
inexplicitness
investment estimate
issued estoppel
junket
Karagoua
KwaZulu-Natal(Natal)
labourable
Lustrex
malvaless
manganeous
mermiden
microradiography
natural wavelength
nest spring
nicotinist
normalizable
nothing like leather
Old Turkic
paridiformoside
passivant
Pegamine
phosphurets
picking lever
plastic section modulus of beam
pleurobranchia
powder-metallurgical
power generating rail car
processes with feedback
quick-acting relay
recolors
regeneration area
reinterests
resource calendar
retheming
reversible adsorbent
sandwells
santing
sarmentocymarin
satellite banking
Schisandra chinensis
selvagee strop
shitty mess
simultaneous lobing system
SNA
sterners
stock dividends
subsequent release
tarnishable
telleth
the cream of the crop
the middle-aged
two phase three wire system
two-bath fixation
type some
ultra-low-melting alloy
undimmed
VML
voreward
westvale
whip someone or something into something