像场修正透镜[物镜]

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(507) / 评论(0) 分类 2018年VOA慢速英语(二)月

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(81) / 评论(0) 分类 2011年VOA慢速英语(六)月

Chinese Company Bets Big on Laos Casino Project The Chinese-run Kings Romans casino is one of the most noticeable and flashy features on the Lao side of the Mekong Rivers Golden Triangle. Kings Romans signed a 99-year lease with the Lao government to

发表于:2018-12-16 / 阅读(57) / 评论(0) 分类 VOA标准英语2012年(五月)

Do you resemble someone famous? Jo: Hello, this is Real English from BBC Learning English, Im Jo. Sun Chen: 嘿,你好吗?我是孙晨。 Jo: In Real English, we look at words and phrases that you might not find in your dictionary. Sun Chen: 你是不是已经发

发表于:2019-01-02 / 阅读(118) / 评论(0) 分类 地道英语在线听

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:2019-01-02 / 阅读(71) / 评论(0) 分类 60秒科学

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(330) / 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(112) / 评论(0) 分类 Scientific American(六)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(107) / 评论(0) 分类 2011年VOA慢速英语(六)月

AILSA CHANG, HOST: Today in Your Health, we're going to tackle an issue that affects about half of all mothers. The technical term is diastasis recti, but many of us know it by another name - mommy pooch - you know, that soft belly that bulges out a

发表于:2019-01-16 / 阅读(60) / 评论(0) 分类 2017年NPR美国国家公共电台8月

May 18th,1980Its erupting like it never has before, I am sure. Cause from where Im standing, I cant see the top of the mountain, but I see the whole eruption coming from it, its big.In Washington state, Mount St. Helens explodes, blasting away the to

发表于:2019-01-19 / 阅读(154) / 评论(0) 分类 历史上的今天-2010年

April 18th,1906A devastating earthquake strikes San Francesco, flattening buildings and setting off raging fires. Estimates of the final death toll range between 3,000 and 6,000 in one of the worst natural disasters ever to hit an American city. 17

发表于:2019-01-19 / 阅读(62) / 评论(0) 分类 历史上的今天-2010年

May 18th, 1980Its erupting like it never has before, Im not sure, 'cause from where Im standing I cant see the top of the mountain. But I see the whole eruption coming from it. Its big. In Washington State, Mount St. Helens explodes, blasting away th

发表于:2019-01-19 / 阅读(59) / 评论(0) 分类 历史上的今天-2014年

May 18th, 1980Its erupting like it never has before, Im not sure, 'cause from where Im standing I cant see the top of the mountain. But I see the whole eruption coming from it. Its big. In Washington State, Mount St. Helens explodes, blasting away th

发表于:2019-01-19 / 阅读(62) / 评论(0) 分类 历史上的今天-2015年

Traveling at speeds of up to about 20 miles,they drive the mullet onto the beach.Trapped,the fish have no way to turn.Flattening out their bodies like surf boards,they skim in just inches of water. The surf mums are the only dolphins in the world who

发表于:2019-01-22 / 阅读(61) / 评论(0) 分类 自然百科2013年

大家都知道spit的意思是“唾液”。可奇怪的是,有一个和spit相关的词组spit and image的意思却是“和……一模一样的(人或东西)”。 语源学界普遍接受的

发表于:2019-01-31 / 阅读(123) / 评论(0) 分类 英文语法词汇

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(92) / 评论(0) 分类 英文语法词汇

A long long time ago, there were two people who look very much like yourselves. And as with you, they were on a journey, a quest if you will. to find what we all seem to be sreaching for, for reasons they may never even know. They enter the land of t

发表于:2019-02-04 / 阅读(78) / 评论(0) 分类 英语万花筒

The local government in Central China's Zhoukou city forcibly flattened over two million rural tombs over the last year in order to increase arable land. By the end of this Spring Festival, more than half of those flattened tombs were restored by loc

发表于:2019-02-14 / 阅读(76) / 评论(0) 分类 英闻天下

But I want to encourage you to reject these cynics who say that technology is flattening your experience of the world Please don't let anyone make you think that you're any less somehow shallow不过我劝你们别听这些讽世者的别听他们说什

发表于:2019-02-16 / 阅读(68) / 评论(0) 分类 公众人物毕业演讲

From ground level to its highest point, the troposphere (or turning sphere) 从地面到最高点,对流层(亦称对流圈) is about ten miles thick at the equator and no more than six or seven miles high in the temperate latitudes where most

发表于:2019-02-25 / 阅读(75) / 评论(0) 分类 万物简史
学英语单词
adjudication fee stamp
advance slope method
aerological analysis
amarbeline
anatron
anithers
as merry as a sandboy
Asserculinia
automatic voice recognition
Bagare
Balmedie
barrings
Berangan, Sungai
bionermal suite
Borneo camphor
bottlebrush
broad-band random vibration
Chinese lexicology
chrome chloride
coefficient of consistence
coffeehouse
collective representation
colonus
combined dispatching
direct preparation
dnic (data network idenification code)
drop the mask
Dubh, Loch
duplicidentate
eagle-tribune
effume
elementariness
Er.
farm radio broadcasting center
fascinates
fishing remote sensing
foramen root
freys
genetic phonetics
Glypressin
Goulonkila
harsh concrete
height-adjustment
honeybadgers
humiliators
ideal gasconstant
in the nature of things
lance-type soot blower
light source for instrument
Longa, Proliv
lump sum appropriation
Marco Polo's sheep
marketing-research
matsen
maximum length of bore ground
mud turtles
nautical map
neonatal refusal of milk
neroccios
Nolinskiy Rayon
non toxic substance
over the counter
parallel-flow condensation
party tray
payment against presentation of shipping document
penury
periodic trial balance
physical investigation
piezometric height
Port Sulphur
pricing the invertory
pyridomycin
radar photography
reimbursement agent
rish
Rossolimo's reflex
Rush City
sawms
schrock
self reading instrument
servo tracking
sideshowman
social invention
southerness
spiderwort family
strongylogaster abdominalis
subfractional rating
supercritical drying
telebriefings
temper tester
TON (total oxidized nitrogen)
total curvature of a lens
triangular parachute
tuberositas tibiae
turner broadcasting system
twitchells
uneyed
Viogt effect
want of
white glaze with underglaze black colours
Zarīneh Rūd