场致离子透射显微镜

9) The number of violent acts on televisions in the past years __ has increased __ (increase) from about 19 to 27 per hour. (15A 2004 上 ) 10) Your mind _ will keep ___ (keep) up with your reading sp

发表于:2018-12-01 / 阅读(264) / 评论(0) 分类 自考英语(一)78讲

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(586) / 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(152) / 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(191) / 评论(0) 分类 Scientific American(六)月

Abandoned HIV positive babies Sifiso, left, and Rose, right, at the Cotlands home in Johannesburg, South Africa, 9 Jul 2002 Around 70,000 babies are born with HIV in South Africa every year. It is one of the main contributors to the country's high in

发表于:2019-01-11 / 阅读(152) / 评论(0) 分类 VOA标准英语2010年(七)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(472) / 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

'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(324) / 评论(0) 分类 2016年VOA慢速英语(九)月

By David McAlary Washington 18 February 2007 The U.S. space agency NASA has launched five satellites - the most ever from one rocket - to locate the source of energy in Earth's magnetic field that triggers the colorful, dancing auroras over the north

发表于:2019-01-12 / 阅读(201) / 评论(0) 分类 2007年VOA标准英语(二月)

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(179) / 评论(0) 分类 VOA标准英语2013年(三月)

China has long depended on coal-burning power plants to fuel its explosive growth over the past three decades. As a result, air pollution has risen to alarming levels in central and eastern regions. Policymakers have been working hard to shift the co

发表于:2019-01-19 / 阅读(252) / 评论(0) 分类 2017CRI中国国际广播电台

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(121) / 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(181) / 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(147) / 评论(0) 分类 英语新闻

Voice 1 Thank you for joining us for todays Spotlight program. Im Liz Waid. Voice 2 And Im Rebekah Schipper. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice

发表于:2019-02-14 / 阅读(341) / 评论(0) 分类 环球英语 Spotlight

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(204) / 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(170) / 评论(0) 分类 英文摇滚歌曲
学英语单词
abrin
acrolein test
acupuncture point injection therapy
almond moths
antichi
arcing
Barzillai
be hung up on sth
beam-type maser
bean green
bone fracture set
boyfriend bomb
break sb.'s close
burlada
carbonate-Marialite
coefficient of eddy diffusion
cortinarius haasii
current program status word key
deconcentrates
degree programs
depth-duration curve
dominating character
Dorothy dollar
drive end felt washer guard
early setting cement
electromagnetic reconnaissance
erythronoclastic anemia
federal communications commission (fcc)
feeling the heat
field basis
fractional centrifuguation
fuel oil injection piping
fuuuck
general purpose fan
goods collecting and distributing centers
grayanotoxin
greissinger
gyro hydraulic steering system
hetrick
homofermentative lactic acid bacteria
Hunan province
identification of fingerprint
internal navigation
investment of pile plant
is in store
isogor map
Jefferee light valve
laminated record
lap diameter
limiting batch size
linum
log cabin construction
long-termist
master parts reference list
minosaminomycin
multiple apertures
Narthecium americanum
nerd glasses
night-out
no, thank you
oil-tube drill
ordinary symbol
out-takingly
outbalance
outer posterior quadrant
over-drinking
oxidizable nitrogen
paper textiles
Pastia's sign
potential scattering
predynastic
Primary Care Trust
record serial number
refashioners
repainted
retrogresses
RNYC
roundtable
sausage aerial
scholes let-off motion
seed of oriental arborviate
set the world to right
site area
six-iron
skate rocks
South China Sea Warm Current
stangler
streptaxid
swimming bladder
tambour-making machine
Telford, Thomas
tetragonal sphenoidal class
tin cylinder
tristate control
Tsuga formosana
user action analyzer
vacuum-reduced
vena pulmonalis superior sinistra
VHF-radiotelephone
vinyl perchloride varnish
window-boxes
working loss