音标:[sɜːvəʊmplɪfɪ'keɪʃn] ;
伺服放大

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(237) / 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(277) / 评论(0) 分类 2013年VOA慢速英语(二)月

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(240) / 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(323) / 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(257) / 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(269) / 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(273) / 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(344) / 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(307) / 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(211) / 评论(0) 分类 VOA标准英语2012年(一月)

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(209) / 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(371) / 评论(0) 分类 英语语言学习

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(304) / 评论(0) 分类 VOA常速英语2007年(十一月)

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(351) / 评论(0) 分类 2018年科学美国人10月

Factory workers are about to get super-human strength thanks to Nasa's 'Robo-Glove'. 有了美国航天局(NASA)研发的机器人手套,工厂工人将获超人之力。 The glove helped scientists control Robonaut 2, a humanoid that provided

发表于:2019-02-16 / 阅读(258) / 评论(0) 分类 阅读空间

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(292) / 评论(0) 分类 双语有声阅读
学英语单词
a man of one's time
a.a.a.
AAML
accounting number
anterior spinocerebellar tract
ARCITIIDAE
arteriopalmus
back-lighted
backed by gold
Ban Meng
Baneroft's filariasis
Barber, Samuel
be affected with
be on the anxious seat
be thankful for
Bobingen
Bothfeld
bourgeoised
brindis
building hardware factory
busy hour call
by grab
calomel cell
cardinal-flower
Chengman
complimented
consular commission
council and advisers
cross dunnage
crystal glass
cyanoacetohydrazine
dark mottle
de-ionization potential
decentralization of population
dedusted coad
defenders
degree of saturation
dilatation of uterine cervix
disadvauntage
economic dispatching of power system
entrainment pressure
experiencing
fat embolus
financial and investor relations
fluidize flour
foreign invested enterprises
fuagi testis
fully distributed costs
gas-touched perimeter
gastrotomy
Huggins' test
idle block
induced electrooptic axis
inducing needling sensation
isogamies
Lavre
leathercrafting
Lorisidae
mikamycins
msoes
myomotome
necessitous
nighwhat
nowth
operating side
packed a lunch
Papa, Holm of
paratenorite
phraxos
physical supporting evidence
plain die
porcelain connector
postvaccinal purpura
pregeminum
prenoting
price information feedback
professional interpreter
protective tariff policy
protriaene
quasi-discontinuity
rectotome
rigorous method
safe zone
security paper
skell
ski binding
sloping bed
smilesmirk
solid-fired gas turbine
something like
Spina trochlearis
St-Gervais-sur-Mare
stayover room
stobart
Stone dead hath no fellow.
tele-sales
thwites
trifluoromethylanilines
vbm
vitilitigious
water opossums
wave paddle