金属配位聚合物

By Gary Garriott Broadcast: November 3, 2003 This is Steve Ember with the VOA Special English Development Report. People have been recycling metals for hundreds of years. Today, re-using metal waste o

发表于:2018-12-01 / 阅读(275) / 评论(0) 分类 VOA2003(下)-发展与科学

[00:11.78]lesson 33 [00:22.05]Read and practise [00:27.92]LILY:Hi,Lin Tao! What's this called in English? [00:34.59]LINTAO:Oh,it's a writing brush. [01:10.43]What's it made of? [01:19.20]It's made of bamboo and animal's hair. [01:35.45]What's it used

发表于:2018-12-10 / 阅读(104) / 评论(0) 分类 初中英语人教版初三

Most works of art - paintings, sculptures, artistic jewelry - are created for a collector or patrons who visit a gallery. The artist makes something, and someone else buys it and takes it home. Others create large public art - sculptures and statues

发表于:2018-12-16 / 阅读(146) / 评论(0) 分类 VOA标准英语2010年(九)月

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(127) / 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(155) / 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(134) / 评论(0) 分类 Scientific American(一)月

Building with Wood and Metal Hugo: Wow, when you said that you did some woodworking on the weekends, I thought you meant refinishing furniture. But this! This is a real workshop and youre actually building furniture. Shawna: Yeah, this is what Im wor

发表于:2018-12-27 / 阅读(155) / 评论(0) 分类 2014年ESL之餐饮娱乐

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(140) / 评论(0) 分类 60秒科学

By Roger Hsu Mephis, Tennessee 17 August 2006 watch Museum report The National Ornamental Metal Museum in Memphis is devoted to the conservation and advancement of metalwork. It is a place where metal smiths become synonymous with artists and where

发表于:2019-01-06 / 阅读(228) / 评论(0) 分类 2006年VOA标准英语(八月)

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(175) / 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(144) / 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(197) / 评论(0) 分类 Scientific American(四)月

[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Description: Metal Sonic is flying through space and comes to an asteroid field, you need to help him blast his way through without getting hit or its game over. Instructions: Move: Up

发表于:2019-01-08 / 阅读(217) / 评论(0) 分类 Daily Free Games

Lesson 64: [00:03.58]What Do You Know?Have You Seen These Words? [00:09.35]bag bit,a bit of I have a bit of plastic.It's a white bit. [00:18.00]It's small.Look!I can hold it in my hand. [00:23.95]least,less [00:27.43]There are three bags of garbage.I

发表于:2019-01-09 / 阅读(271) / 评论(0) 分类 河北加拿大版初中英语

美国新晋说唱女歌手 Azealia Banks 变身大漠妖姬,带来超动感单曲《Heavy Metal And Reflective》!感觉棒极啦,飚车一族势不可挡,期待 Azealia Banks 更多更好的作品。 歌词: Fridgy froze kept, it's that f

发表于:2019-01-10 / 阅读(133) / 评论(0) 分类 英文最新流行歌曲

Staying with the precious metal, and Chinas largest gold company says the country will surpass India to become the top consumer of gold in the world. In the first three quarters of this year, China produced 284 tons of the yellow metal, a nine percen

发表于:2019-01-11 / 阅读(153) / 评论(0) 分类 英语演讲

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(107) / 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(207) / 评论(0) 分类 VOA标准英语2016年(二月)

RACHEL MARTIN, HOST: And now some words you don't often hear together - all-girl, teenage, Indonesian metal band. NPR's Ashley Westerman has this profile. ASHLEY WESTERMAN, BYLINE: The band's called Voice of Baceprot. Baceprot means noisy in the girl

发表于:2019-01-16 / 阅读(137) / 评论(0) 分类 2017年NPR美国国家公共电台8月

DAVID GREENE, HOST: So every time you weigh something, whether it's coffee or bananas - I'm not sure what you're weighing - you might be doing it in pounds - well, whatever you're doing, you're unknowingly relying on a global system of measurement th

发表于:2019-01-17 / 阅读(180) / 评论(0) 分类 2018年NPR美国国家公共电台11月
学英语单词
a-octadecenamide
Aconitum pseudostapfianum
air quality simulation model
Allium juldusicola
altai mountainss
amorphous switch
amplifier transformator
anthemions
applied voltage withstand
Aq. pur.
atomic potential
autoinductive coupling
average cost of capital
avicennielum
barne
Chulu
communicates
culture-sensitive
d'orient
defined length block
disenchantresses
drewnowski
eastern cottonwoods
elaphropoda taiwanica
element content
empire
fault display
fight or fight reaction
filiformpapillae
formosan fermite
fourth officials
fungemia
genus oxydendrums
grain of truth
graphics filter
hardening fixer
heating with humidifying
hemicondyles
high performance superheterodyne receiver
homocopolymer
horizontal reinforcement
Hyaena brunnea
hydroelectric joint
hypodermic tablet
input driver
issuing station
Jap's eye
lammastides
late onset disease
law of rational indices
master rotor
microwave pulse generator (mpg)
middle post
minelaying cruiser
mooreite
myry
national ambient air quality standards
near neighbor mesh network
netcasts
network frequency
nickel gymnite
nucleus paraabducens
nuptiality
occidental diamond
on bended knees
optimality principle
orpiment
Otmuchówskie, Jezioro
permanent bar
phototopographers
pipe fitting
plunger over-current relay
prevailing westerlies
prtl
putty in plastering
puzzel
regular local equation
revolving field-type
rivosus
road to the isles (scotland)
rolled-back
salimbeni
sequential by key processing
service acceptor
small-meshes
sollar
spirtled
spring caliper
sprunk
spruntly
stage machinery
storage pot
strickout
successive subtraction method
sudden attack
sufflues
ucsicon
unsolidity
wagner tuba
wave sb. on
Westmonasterian
winie