通用放大

Splendid! He kept his telescopic cameras carefully aimedglued to their moving objective; 精彩片他小心地调着望远摄影机的镜头,盯紧了那移动着的对象。 clapped on a higher power to get a close-up of the frantic and distorted

发表于:2018-12-07 / 阅读(128) / 评论(0) 分类 美丽新世界

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(129) / 评论(0) 分类 2013年VOA慢速英语(二)月

By Mohamed Elshinnawi Washington, DC 31 October 2006 watch Universal Studio report With summer vacations over and students back in school, the crowds are thinning at Universal Studios Park in Hollywood, California. But not by much. The movie-studio

发表于:2018-12-16 / 阅读(188) / 评论(0) 分类 2006年VOA标准英语(十月)

The World Health Organization says about 500,000 people die every year from seasonal flu. To combat that, doctors recommend getting a flu vaccine at the beginning of each flu season and researchers are now working on a universal vaccine that could pr

发表于:2018-12-16 / 阅读(132) / 评论(0) 分类 VOA标准英语2010年(十二)月

The central government's chief liaison in Hong Kong has gone on record saying authorities on the mainland are sincere in achieving universal suffrage for Hong Kong. CRI's Su Yi has more. Zhang Xiaoming, director of the Liaison Office of the Chinese C

发表于:2018-12-19 / 阅读(145) / 评论(0) 分类 世界各地新闻集锦

BBC News with Julia Candler. A senior member of North Koreas government has warned that his country would react with a pre-emptive nuclear strike if it saw signs that the US was preparing to launch an attack. Speaking to the BBC, the Vice Foreign Min

发表于:2018-12-20 / 阅读(149) / 评论(0) 分类 中英双语新闻

This is Scientific American's 60s Science. I'm Karen Hopkin. This will just take a minute. Think about the tools used by biologists, perhaps test tubes and microscopes come to mind. But what about diapers? No, it's not the investigators in their work

发表于:2018-12-24 / 阅读(190) / 评论(0) 分类 2015年Scientific American(一)月

In my lab, we recently made a cancer nanodetector 在我的实验室,我们最近研制出了一种癌症纳米检测器, that is so small that it could travel into the body and look for tumors. 小到可以进入全身血液循环并寻找肿瘤。

发表于:2019-01-03 / 阅读(149) / 评论(0) 分类 TED演讲科学篇

PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat

发表于:2019-01-08 / 阅读(142) / 评论(0) 分类 Scientific American(十)月

This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec

发表于:2019-01-08 / 阅读(147) / 评论(0) 分类 Scientific American(三)月

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(193) / 评论(0) 分类 2013年VOA慢速英语(五)月

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one

发表于:2019-01-12 / 阅读(165) / 评论(0) 分类 2012年VOA慢速英语(一)月

'Word on Street' Impacted Language in 2011 While 2011 is over, some of the words that came to define the past year are still very much with us, and may be for years to come. Since 2011 was an especially busy year for grassroots political action, many

发表于:2019-01-13 / 阅读(114) / 评论(0) 分类 VOA标准英语2012年(一月)

Each year, scientists work to develop a unique influenza vaccine to protect people against the strain expected in the coming flu season. Mutations in the virus mean that last year's vaccine probably won't protect against this year's flu variety. Now,

发表于:2019-01-13 / 阅读(162) / 评论(0) 分类 VOA标准英语2010年(七)月

Because of course, the ear is, I mean, subject to all sorts of things. 这当然是因为,我是说,耳朵受制于很多因素。 The room we happen to be in, the amplification, the quality of the instrument,the type of sticks...etc., etc. 我们现

发表于:2019-01-18 / 阅读(126) / 评论(0) 分类 TED演讲国际问题篇

Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve

发表于:2019-01-24 / 阅读(195) / 评论(0) 分类 英语语言学习

By Robert Raffaele Washington, DC 08 December 2006 watch Universal Studio Expansion Universal Studios' Bates motel It seems movie characters Norman Bates and his mother from the film Psycho will be getting some neighbors. As VOA's Robert Raffaele ex

发表于:2019-01-31 / 阅读(207) / 评论(0) 分类 2006年VOA标准英语(十二月)

China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin

发表于:2019-02-14 / 阅读(209) / 评论(0) 分类 2018CRI中国国际广播电台

Nobel in Physics for Controlling Laser Light 诺贝尔物理学奖颁给激光控制实验者 The main practical application of CPA so far has been in the eye surgery. It was the first one, and I think it is the one that is used by the most people fo

发表于:2019-02-14 / 阅读(192) / 评论(0) 分类 2018年科学美国人10月

The Revolution in American Higher Education To produce the upheaval in the United States that changed and modernized the domain of higher education from the mid 1860's to the mid 1880's, three primary causes interacted. The emergence of a half dozen

发表于:2019-02-25 / 阅读(165) / 评论(0) 分类 双语有声阅读
学英语单词
acoustic impedance difference
acoustic NMR
aminomesitylene
arbs
as close as an oyster
asbestos-cement flue liner
at first appearance
before your eyes
Bemisia tabaci
bird vetches
blue-eyeds
blues-rockers
c(a)ecum
chemical aftereffect
chidzeroes
combustion initiator
comma-separated
condensed skimmed milk
cotrell
creep fatigue
crossed field spectrometer
dimethylene
driving means
dual price system
dust-cloud theory
earthquake proof construction
eina
enframe
far-point
file references
fixed joint
Forward arrow
freen
full-made
gachets
GM_although-or-though
gracilenta
green grams
heavy fishing
hypsometric equation
ironclaw
landscape science
lepidocrocites
lindernia nummularifolia
literarycritical
long pitch winding
ludwigshaven
Mansonia annulatus
Masseube
meat extract
melting-pot
mispers
misremembrances
muscular cramp
mycobactocidin
myxofibroliposarcoma
nitralamine
noble canes
non recuperative system
nonlinear computing element
noonery
nucleophilic aromatic substitution
olfactory impairments
out-number
parasite plant
Phyllostachys robustiramea
pneumoretroperitoneum
postkinematic
pragmatization
prestressed ferrocement
prier
Pseudobaptisin
pulley gear
Quissac
radiculopathy
reflector path
Rehmiella ulmicola
retracting system
roller section-straightening machine
salazosulfapyridine
seek error
single inheritance
solar flare event
South Dartmouth
species aromaticae
statemate
steam period
stereotemplet method
structural setting
supply water distribution header
surface film
tall and slender structure
to poach
tonna melanostoma
tsingtao beer
ultimate unit
unit dyadic
vapor pressure chart
velamentous
vivelo
wheel barrow powered
wind velocity vector