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(48) / 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(74) / 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(104) / 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(84) / 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(87) / 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(104) / 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(92) / 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(134) / 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(59) / 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(138) / 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(54) / 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(58) / 评论(0) 分类 金属
学英语单词
AABTM
account period
alveolocondylar
Androcorys ophioglossoides
Artemovskiy
axillant
Baisoara
ball cover
basic task
binding materials
brand-goose
Bruno, Frank
bsjas
cake-like
circumferential length of nozzle
clanswoman
clientelism
coal har.
commerce note fee
commey
compass roses
competence standard
Crevalcore
debit card
density-speed-volume relationship
destonie
developmentally challenged
drop table
edit script
electronic spreadsheet
ever-shiftings
execution guard mode
family paguridaes
finks
front clip attachment
Fuentidueňa de Tajo
gate controlled delay time
give it away
guarator enterprise
heavy current engineering
hemorrhagic fever
hotwiring
hydrolytic degradation
immunoturbidimetry
impracticality
in wear
indomethacinum
ion exchange capacity
Kannigyi
keya paha
lampholders
Laves' phases
Lenarcic
line paper
mak-
maskant point
mechanical multiplier
message control
metallurgy of cadmium
mobile component
monogatari (japan)
mPVR
multi-institutional
multihost operation
net assaes worth
nysing
perioral area
pregnancy
private domain name
proliferants
proton magnetic resonance spectroscopy
pseudocellulose
purpura fibrinolytica
radioiodinated serum albumin(RISA)
ram raids
rub-a-dubbing
sand valve
sarcosporidiosis
Saxifraga bronchialis
seesaw hub
self-discrimination
sirenidaes
sliding bearing sleeve
small-angle diffraction
sound sensor
squeaked by
static target
sys op
Szczytno
take ... to
taurocholic
theoretical-throat
Thlaspi
top front rake
topsoe
trophochrome cells
u-frame
unvaliantly
vectorial property
venadas
yamulkas