多焦点透镜

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(500) / 评论(0) 分类 2018年VOA慢速英语(二)月

Nearly 50% of Americans wear corrective glasses, according to the trade group Vision Council. And most of them are guilty of the biggest crime in lens care: Exhaling onto their lenses, then wiping the fog off with their shirt sleeves. But does this r

发表于:2018-12-12 / 阅读(58) / 评论(0) 分类 英语阅读理解

AMERICAN STORIES - Short Story: The Diamond Lens by Fitz-James O'Brien (Part 2) Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and

发表于:2018-12-16 / 阅读(76) / 评论(0) 分类 2011年VOA慢速英语(六)月

The Blurry World Underwater When you open your eyes underwater, things look blurry, but with goggles, everything looks perfectly clear. Why cant we landlubbers focus underwater without goggles? First, we need to explore how our eyes focus when were h

发表于:2018-12-31 / 阅读(90) / 评论(0) 分类 英语听力文摘 English Digest

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(326) / 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(103) / 评论(0) 分类 Scientific American(六)月

This is the VOA Special English Health Report. Governments, businesses and other groups have promised to add three billion dollars to the fight against malaria. The promises came last week at a meeting at the United Nations in New York. The money wi

发表于:2019-01-11 / 阅读(98) / 评论(0) 分类 VOA慢速英语2008(十)月

AMERICAN STORIES - Short Story: The Diamond Lens, Part 1, by Fitz-James O'Brien SHIRLEY GRIFFITH: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story today is called The Diamond Lens. It was written by Fitz-James O'Brien. We will te

发表于:2019-01-12 / 阅读(103) / 评论(0) 分类 2011年VOA慢速英语(六)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(227) / 评论(0) 分类 2016年VOA慢速英语(九)月

幽灵照片问世 Photographer John Milleker is setting up for a spirit photo shoot in Sky Meadows State Park in Delaplane, Virginia. But first, he tells visitors about William Mumler, who came up with the idea of spirit photography. 在弗吉尼亚州

发表于:2019-01-14 / 阅读(322) / 评论(0) 分类 VOA标准英语2016年(一月)

Apple Inc. unveiled its new water- and dust-resistant iPhone 7 and a new version of its Apple Watch with high-resolution cameras at its fall product event on Wednesday, and said a Super Mario game was coming to the new phone and Pokemon Go would feat

发表于:2019-01-17 / 阅读(99) / 评论(0) 分类 实用英语

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(109) / 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(225) / 评论(0) 分类 2006年慢速英语(四)月

photo, photograph 照片,像片 snapshot, snap 快照 photographer, cameraman 摄影师 backlighting 逆光 backlighting photography 逆光照 luminosity 亮度 to load 装胶卷 focus 焦点 to focu

发表于:2019-02-02 / 阅读(85) / 评论(0) 分类 英文语法词汇

That's the difference 这就是区别所在 A teenager lost a contact lens while playing basketball in his driveway. yKV中国英语学习网 After a fruitless search, he told his mother the lens was nowhere to be found. Undaunted, she went outside a

发表于:2019-02-07 / 阅读(118) / 评论(0) 分类 趣味英语

You know I don't need you You know I don't need your hell If you going give me something Well give me something I can't give myself Oh, don't want your money Don't want your rolodex of friends Already have me a daddy Take a new picture for your portr

发表于:2019-02-09 / 阅读(143) / 评论(0) 分类 音乐咖啡厅

今天我们分享的是让人充满鸡血的Facebook内部工作小贴士。 1. Work more when you're in the zone. Relax when you're not. 当你在状态的时候,就多干点活,不然就好好休息。 2. Stop multi-tasking. It merely kills yo

发表于:2019-02-12 / 阅读(79) / 评论(0) 分类 卡卡课堂早餐英语

Nose bridge 鼻中 Tip 脚套 Temple 脚丝 Plating 电镀 Printing 印字 Lase 镭射 Spectacle frames 眼镜架 Sunglasses 太阳眼镜 Sports spectacles 运动眼镜 kid's eyewear 儿童眼镜 Reading glasses 老花镜 Contact lens 隐形眼镜 Gl

发表于:2019-02-13 / 阅读(68) / 评论(0) 分类 实用英语

Like glasses, contact lenses work by bending light rays just the right amount to make the object come into focus on the retina at the back of the eye. Sometimes the eyes natural lens has an imperfection or may not be shaped properly, which can make y

发表于:2019-02-15 / 阅读(83) / 评论(0) 分类 英语时差8,16

Making Contact 为什么戴隐形眼镜看东西更清楚? Don:I get contact lenses to replace my glasses and its like Im seeing the world through new eyes. Its miraculous ! Yal: Acutlly, Don, there is nothing miraculous about it. D: Who tell? Y: W

发表于:2019-02-24 / 阅读(103) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
An Bien
anemia infantum pseudoleukaemica
aviation boots
balanorrhea
band of
bilateralists
biological response
burgeois
capacity decision making
catalonia
coadjusted
come down on the side of
contritions
cut no ice with
cyanogenecic
debatest
decipols
deoxidating
elastomeric impression material
environmental edaphology
Erlang distribution Erlangian distribution
feel an affection for
field coil
galvanized mild steel animal chain
gene transfer
grape-pickings
gritcrete
group of inner automorphisms
head wheel
Hebbel, Friedrich
heterogeneous radiator
Hickory Valley
high-soundings
highway natural zoning
home ground
Hoskote
hum modulation factor
injection locked oscillator
interference method
intermediate-image spectrometer
invadopodia
inviting adultery and burglary
kit-fox
knitted fabric
krypton chloride excimer laser
LADG
laelaps echidnus
letter of guarantee for production of bill of lading
little bluestem grass
maleate
manufacturing licence
marine chronometer
maturemeter
multiple services operator
neucleoprotein
nkp
nonbanks
noncentral T
NWAM
othain
outer coat
outward-bounder
outworldish
page length field
Paleocene Series
pass ... by
pound-centigrade unit
pressed cannon second hand
Pudelpointer
q-interface at the an
radar coverage indicator
resistance tuning
right balanced
sabaliter
schoolma'am
seeming
shadowgrams
sheared cut
short pitch
slot and crank
space thermionic auxiliary reactor
space-division multiplexing
Spanish cress
spot questions
styliser
talking radio beacon
thermal-conduction manometer
three-necked flask
times interest earned
tisha
trace primitive
traprock
trimmigrants
ultrafine mill
ultrared ray
umbo
unsilicified
veintimilla
vin du pays
wikilawyering
ychosen
zinc fluorescence test