大屏幕发射式电子显微镜

As Americas nuclear power industry continues to suffer major economic difficulties, some are questioning whether it can - or should - survive. The latest setback came July 31, when state power companies in South Carolina halted construction of two re

发表于:2018-12-08 / 阅读(52) / 评论(0) 分类 VOA标准英语2017年(8月)

[00:00.00]Lesson 4 Atom [00:01.95]原子 [00:03.89]The really strange thing about atoms is that most of us will never see one. [00:08.87]原子最奇特之处在于绝大多数人永远也无法看到它。 [00:13.84]Atoms are so small that it's impo

发表于:2018-12-08 / 阅读(73) / 评论(0) 分类 赖世雄学英语第四册

06 Shopping for a Television GLOSSARY this is what Im talking about a phrase used when one has found what onehas been looking for or what one has been interested in for a long time * Look at this video camera! Now this is what Im talking about! Too b

发表于:2018-12-26 / 阅读(146) / 评论(0) 分类 2011年ESL之餐饮娱乐

Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and final part of the story. Here is Maurice Joyce with part two of The Diamond Lens. When I was a child, someone gave me a microscope. I spent

发表于:2019-01-03 / 阅读(328) / 评论(0) 分类 2018年VOA慢速英语(三)月

Diesel fuel in the US and the fumes from diesel engines are about to get a whole lot cleaner. As of today, the Environmental Protection Agency is requiring much of the diesel in the country to have 97% less sulfur in it. It's the start of a project

发表于:2019-01-07 / 阅读(169) / 评论(0) 分类 2006年NPR美国国家公共电台

After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

发表于:2019-01-08 / 阅读(109) / 评论(0) 分类 Scientific American(六)月

This is the VOA Special English Development Report. Nanotechnology uses matter at the level of molecules and atoms. Researchers are finding different uses for particles with a length of one nanometer, or one-billionth of a meter. These include things

发表于:2019-01-11 / 阅读(68) / 评论(0) 分类 VOA慢速英语2007年(三)月

The Diamond Lens by Fitz-James O'Brien, Part Two 钻石镜头 by 菲茨詹姆斯奥布莱恩 Ⅱ Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and final part of the story. Here is Maurice Jo

发表于:2019-01-12 / 阅读(393) / 评论(0) 分类 2015年VOA慢速英语(七)月

The Diamond Lens by Fitz-James O'Brien, Part One 钻石镜头 by 菲茨詹姆斯奥布莱恩 Our story today is called The Diamond Lens. It was written by Fitz-James O'Brien. We will tell the story in two parts. Now, here is Maurice Joyce with part o

发表于:2019-01-12 / 阅读(122) / 评论(0) 分类 2015年VOA慢速英语(七)月

'The Diamond Lens' by Fitz-James O'Brien, Part Two 钻石透镜 II by 菲茨詹姆斯奥布赖恩 Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and final part of the story. Here is Maurice J

发表于:2019-01-12 / 阅读(235) / 评论(0) 分类 2016年VOA慢速英语(九)月

iPhone Becomes Low Cost Microscope The Apple iPhone can be used for lot of things making calls, playing games and sending pictures, video and text. Scientists say it also can be converted into a low-cost microscope to detect worm-related infections i

发表于:2019-01-14 / 阅读(91) / 评论(0) 分类 VOA标准英语2013年(三月)

By Nancy-Amelia Collins Bali, Indonesia 13 December 2007 The head of the United Nations Climate Change Conference is warning that a deadlock between the United States and the European Union over greenhouse gas emission targets may derail the conferen

发表于:2019-01-16 / 阅读(99) / 评论(0) 分类 VOA常速英语2007年(十二月)

When we ate something sweet, for example, the brain sent signals to our pancreas, which started producing insulin that stored the sugar molecules in our cells for energy. 举例来说,当我们吃了甜的东西,大脑会发送信号给胰腺开始

发表于:2019-01-20 / 阅读(59) / 评论(0) 分类 留美老师带你每日说英文

Ladies first, partner? Edward asked. 搭档,女士优先?爱德华问。 I looked up to see him smiling a crooked smile so beautiful that I could only stare at him like an idiot. 我抬头看见他一脸坏笑,可笑得是那样的好看,害得

发表于:2019-01-22 / 阅读(56) / 评论(0) 分类 暮光之城•暮色

AMERICAN STORIES - The Diamond Lens, Part OneBy O'Brien, Fitz-James Broadcast: Saturday, April 01, 2006 Announcer: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story today is called

发表于:2019-01-30 / 阅读(111) / 评论(0) 分类 2006年慢速英语(四)月

AMERICAN STORIES - The Diamond Lens, Part TwoBy Fitz-James O'Brien Broadcast: Saturday, April 08, 2006 Announcer: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story is called The Di

发表于:2019-01-30 / 阅读(229) / 评论(0) 分类 2006年慢速英语(四)月

Byung: This is what Im talking about! Its time to upgrade to a big-screen TV and this is the perfect place to buy one. Nelly: They certainly have a large selection. These new TVs have pictures that are much sharper than our current one. Byung: Theres

发表于:2019-02-02 / 阅读(70) / 评论(0) 分类 地道美语播客

WASHINGTON, May 1 (Xinhua) -- Scientists from IBM on Wednesday unveiled the world's smallest movie, made with one of the tiniest elements in the universe: atoms. Named A Boy and His Atom, the movie used thousands of precisely placed atoms to create n

发表于:2019-02-04 / 阅读(71) / 评论(0) 分类 英语新闻

The Microscopic Technique Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible light microscope late in the sixteenth cen

发表于:2019-02-25 / 阅读(95) / 评论(0) 分类 双语有声阅读

How could you say you know who I am? Do you ever wonder why I'm here? The thoughts play back in your head like a film that has been stick on repeat. Imagine that this picture of me is painted for you. A portrait is made to hold a moment and moments w

发表于:2019-02-26 / 阅读(85) / 评论(0) 分类 英文摇滚歌曲
学英语单词
abets
Abū Samāra, Khirba
affixational
agricultural mechanics
aguishly
apiolin
argolic
arteriovenous aneurysm
attributive use
azrael
baladiyah
Bhatpara
Black Entertainment Television
boiler seating
boringest
bug repellent
calendar subroutine
catalog paper
collegie
containment atmosphere control
direct encoding microinstruction
disc (bowl) centrifuge
dividends tax
dollarizations
double coiled relay
Dysoxylum arborescens
equation-division
extraviolet
feed shaft
fictious transactions
flow feedback control
fluidlike
Gadifer de La Salle
gelugpa
generalized stationary process
gleich berg
golf-pro
hambley
hang up the phone
hawis
heat treated casting
Hokang
Hypnoral
I/O channel
ill-dresseds
incestuals
isocorybubine
karytheca
knock sedative dope
Kommerdijk
L-Alanine
land-pebble phosphate
launch system
macadamed
metro engineering
monoalkyl-phosphonic acid
mountain blue berries
Mylosed
narrow-gage railway
nucleus reticularis gigantocellularis
oblique fiber
pandiculate
partinar
Peniltetra
photocleavage
prayer rug
pressed ahead
proof of claim
read write cycle
replicative enzyme
risk spreading
rollcalls
rotary penetration
rupture member
schiro
secondary albite
seven-month-olds
shim control
short hose
sigma electrons
single diffusion test
single-notes
speakability
squabbly
stand-alon emulator
step-type spot welder
steroscopic
stinkard
sugar storehouse
superhigh-purity reagent
thermal ionization mass spectrometer
threephase potential transformer
threshold of responsiveness
timing ring
towed speed
turnning
urchfonts
URL shortcut
wave energy density
wopat
X-ray holography
zero computing time