[高分子 物化] 聚合物光化学

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(146) / 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(176) / 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(157) / 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(163) / 评论(0) 分类 60秒科学

As It Is - Remember Your Chemistry Classes? An international team of researchers recently reported creation of a new element that is 40 percent heavier than lead. The researchers successfully developed what they are calling Element Number 117 at a la

发表于:2019-01-03 / 阅读(178) / 评论(0) 分类 2014年VOA慢速英语(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(210) / 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(162) / 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(212) / 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(121) / 评论(0) 分类 2016年VOA慢速英语(九)月

Having the opportunity to take on a diverse range of classes such as economics and chemistry along with her music studies is the perfect combination for Diane. Marsha James | Washington DC 10 August 2010 Oberlin Conservatory of Music Student Diane Ly

发表于:2019-01-13 / 阅读(167) / 评论(0) 分类 VOA标准英语2010年(八)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(232) / 评论(0) 分类 VOA标准英语2016年(二月)

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(188) / 评论(0) 分类 2016年Scientific American(十)月

By Tom Rivers London 07 October 2009 Ada Yonath (file photo) Two Americans and one Israeli share this year's Nobel Prize in Chemistry for their work showing how the DNA code is translated into life itself. Americans Venkatraman Ramakrishnan and Thom

发表于:2019-02-03 / 阅读(155) / 评论(0) 分类 VOA标准英语2009年(十月)

By Kevin Billinghurst Stockholm 10 October 2007 The 2007 Nobel Prize for Chemistry has been awarded to Gerhard Ertl of the Max Planck Society in Berlin. Kevin Billinghurst has the story from Stockholm. The Royal Swedish Academy of Sciences honors Pr

发表于:2019-02-04 / 阅读(162) / 评论(0) 分类 2007年VOA常速英语(十月)

A Japanese and a pair of American scientists captured this year's Nobel chemistry prize for discovering a glowing green protein in jellyfish that can be used to spot the beginning of diseases like cancer. Lisa Bryant has more on the prestigious awar

发表于:2019-02-06 / 阅读(144) / 评论(0) 分类 VOA标准英语2008年(十月)

Photo of my wife 我老婆的照片 A businessman enters a tavern, sits down at the bar, and orders a double martini on the rocks. After he finishes the drink, he peeks inside his shirt pocket, and then orders the bartender to prepare another double

发表于:2019-02-08 / 阅读(205) / 评论(0) 分类 趣味英语

I love to use my laptop, to play around with different programs, to surf the web, and to edit photos. Today I have been doing that for hours. Now that my app has come out in iTunes, I have been trying to design a really good photo for it. The existin

发表于:2019-02-17 / 阅读(149) / 评论(0) 分类 英语博客 A cup of English

今天我们要学的词是photo op. Photo op是photo opportunity的简称,意思是为做宣传而专门安排的媒体拍照机会。The meeting between the two Presidents was followed by a photo op, 两位总统会面后接受媒体拍照。 一架

发表于:2019-02-17 / 阅读(186) / 评论(0) 分类 英语每日一词

a photo of my family This is a photo of my family.It was taken in the Ocean Park by a tourist last year.Look!People who is in the picture is smiling! The woman who is standing in the front is my mother .She is young.She is a teacher of Liannan Primar

发表于:2019-02-17 / 阅读(154) / 评论(0) 分类 英语作文

今天我们要学的词是photo op. Photo op是photo opportunity的简称,意思是为做宣传而专门安排的媒体拍照机会。The meeting between the two Presidents was followed by a photo op, 两位总统会面后接受媒体拍照。 一架

发表于:2019-02-19 / 阅读(162) / 评论(0) 分类 英语单词荟萃
学英语单词
abhorrers
across corner view
alligator
anti-aristotelian
apivore
Araria
at a lick
balling intersecting gill box
bartizan
bicathode
bifid rib-basal cell nevus-jaw cyst syndrome
bilimix
Bodelshausen
business-to-consumer
capillanene
capitalist planned economy
capitulum ulnae
ceratina (ceratinidia) okinawana taiwanensis
circular knit hosiery
clerk 's office
collation map
conditioned learning
constricted ear
control valve support operating link
convex ridging body
coryphaenoides asper
crapper wave
Datanil
depliator
devanning report
drug-development
earbow
eiaminodiphenylether
emulsion explosive
endoscopic injection therapy
exhaust steam preheater
extraneous flux
farmstay
flag code
fly spray
four coordination
frontogenetic function
giant cell
Granville's hammer
H radar
Halichondrida
high-precision tube
Hooge Zwaluwe
Hornsey
hour curve
human tolerance flux
hydrational
importe
lark-song
level infection
lipoic acid
long sea
low voltage communication circuit
magnetic core switching time
major leak
material detail record
methane-telluronic acid
mortising bit
motor transport auxiliary produc tion cost
muriform
Neolitsea hiiranensis
non-achiever
non-spotted schist
off ground
ofri
on the up-and-up
open-end mutual fund
operating inferiority
panophthalmia
pericardial knock
pervious embankment
preclusive
prepositioned war-reserve
regroove
remixt
robodog
rosulate
Santa Clara, R.
Saxifraga filicaulis
schema circuit
separate power supply system for car
skatogyl-sulfuric acid
slatiest
spring gauze
stonehard
string instrumentalist
tapered shank
transpersonally
trideoxynucleotide
truck platoon
turnover of material in stock
twinters
typical feature of simulated processes
tyre for motorcycle
Umbellularia
wadger
water channel of gill