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(144) / 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(177) / 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(197) / 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(176) / 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(187) / 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(241) / 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(185) / 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(238) / 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(147) / 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(264) / 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(130) / 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(146) / 评论(0) 分类 金属
学英语单词
AC-ST
accumulative raingauge
acrophase
aliquant part
arest
Arsenolitum
artificial flushing
badging
belt pulley
bipotential operator
Caitra
catheterization of eustachian tube
CE-FAST
ceramic technology
chain out
clear point
coefficient of ranger
confluent thermal trough
current year's income
cut-and-fill terrace
eight-year-old
endosulfatase
expandable shell
force a passage through
four-balls
GABA
genuinely
gipsyisms
glasgow
granulationes arachnoidales
house fungus
in authority
incremental flow changes
Irish bouzouki
jellystone
karma
lepored
let flow
let go on bail
linean tetrad
linguistic domain
lose one's head
lovability
marketing channel
maser source
metallopeus alishanicus
microaphanitic texture
minimum economical descending grade
mohnke
motor driven pump
muric-
nativelikeness
non denominational
oblivy
obtuseness
oligosaccharide determinant
olistostromes
open enrollment
outside casing liner
overstock
paneulogism
pararhythmia
persils
phragmitess
piscinal
pocohontas
polarization of neutron
political offender
Pollia sorzogonensis
process goods locally
psychological model
public transport line
range of choice
Ratzenried
relative color value
renewables
response method
robemaking
ruggedized tube
sarrasine
seat-of-the-pants
sector hole
sensing hole
spell books
Sprite detector
stabilization of austenite
stayman winesaps
stitch-down
stuck rolls
subscientific
super-prompt-critical accident
tasol
three component balance
tin dioxide
totalitarianizing
turning-over board
turreted
ultrasonic Doppler blood pressure transducer
unstructured language
vicibus
voice-tube outlet
william rehnquists