[机] 工具[匠用]

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 one of The Diamond Lens. When I was ten years old, one of my older cousins gave me a microscop

发表于:2018-12-08 / 阅读(583) / 评论(0) 分类 2018年VOA慢速英语(二)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(150) / 评论(0) 分类 赖世雄学英语第四册

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(415) / 评论(0) 分类 2018年VOA慢速英语(三)月

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(190) / 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(141) / 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(471) / 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(196) / 评论(0) 分类 2015年VOA慢速英语(七)月

Amazon's Tool for Reading, One Word at a Time Last week Amazon announced Word Runner, a new tool for reading Kindle books. Word Runner is a software update that shows one word at a time, instead of words, sentences and paragraphs on one page. Amazon

发表于:2019-01-12 / 阅读(182) / 评论(0) 分类 2015年VOA慢速英语(九)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(321) / 评论(0) 分类 2016年VOA慢速英语(九)月

By Patricia Nunan New Delhi 25 July 2006 Like many developing nations, India contends with endemic corruption. Even the management of one of India's most enduring symbols - the cow, which Hindus consider sacred - is rife with corruption and fraud. T

发表于:2019-01-12 / 阅读(250) / 评论(0) 分类 2006年VOA标准英语(七月)

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(178) / 评论(0) 分类 VOA标准英语2013年(三月)

Texting Becomes a Health Tool in Kenya Mobile phone use in Africa has spread far, wide and fast. By the end of last year, it was estimated that 70 percent of the population would have a mobile phone. Now, the International Federation of the Red Cross

发表于:2019-01-14 / 阅读(189) / 评论(0) 分类 VOA标准英语2013年(四月)

Earth's magnetic field has reversed thousands of times since its formation 4.5 billion years ago. And scientists now believe that the next reversal is imminent. The race is on to predicting exactly when it will occur. In 2010, the European Space Agen

发表于:2019-01-22 / 阅读(142) / 评论(0) 分类 自然百科2011年

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(120) / 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(180) / 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(331) / 评论(0) 分类 2006年慢速英语(四)月

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(145) / 评论(0) 分类 英语新闻

Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacter

发表于:2019-02-17 / 阅读(170) / 评论(0) 分类 双语有声阅读

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(202) / 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(169) / 评论(0) 分类 英文摇滚歌曲
学英语单词
a smooth face
active earth thrust
amylan
anti-trust
antichaos
Arthur Meier Schlesinger
articulating region
Behi
BFDs
Bramah press
cardamine impatiens l.
carmin
catelectrotonic current
centibel
child porn
compile routine
comspec
consolidation period
cooling medium pump
cornerpieces
counseling techniques
credit grantor
cross-kick
CT7n
Dangouadougou
declining rate filtration
deep earth burial
digit absorbing selector
dismayl
distance beteen commutator segment
dryjector
effective acceptance time interval
electronic time meter
emaculate
employment problem
escalator clauses
eviseration
fluidisable
flux form
forenames
goldwell
great-sanhedrin
grounded-anode amplifier
gudgeon pin
Heptazone
herpotrichia macrotricha
inconcussible
indenied
inflatable aircraft
interest rate arbitrage
IPPUAD
iris filifolias
isometric process
jasion
Karacurun
latent heat of evaporation
learning counseling
linen handkerchiefs
lose your job
m. semimembranaceus
Maher's disease
mannosamide
melilot
mineral salts
Misburg
natural entity
net heat transfer
net tractive force of wheel
niapan
opinionizing
pad supported jack-ups
parabolic perspectivity
parity selection
patch bolt
permeability-reducing admixture
PNCB
Powellism
pre-incubated
price floor law
pseudocolpi
raspberrylike
reached
remote station supervisory equipment
return freight
rocky road
satrapial
sheathed capillaries
shortstaffed
sit with
stoyanovich
superelevation templet
sworner
symplectomorphism
testoviron-depot
teuthids
theory of types
three-finger salute
tooth fusion
two legs of breech pipes
unimogs
wankdorf
wind pressure value