[计] 功率放大

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(92) / 评论(0) 分类 美丽新世界

Power of auditing Restricting(限制) the power of government leaders at various levels within reasonable limits is something the central government has been doing for the past couple of years. How effective this effort is will make a great diffe

发表于:2018-12-11 / 阅读(102) / 评论(0) 分类 英语新闻

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(88) / 评论(0) 分类 2013年VOA慢速英语(二)月

The New Age of Nuclear Power By Spencer Reiss / Originally published in Wired . Get ready for the mass-produce, meltdown -proof future of nuclear energy 1 A team of Chinese scientists advising the Bei

发表于:2018-12-19 / 阅读(201) / 评论(0) 分类 彭蒙惠英语

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(87) / 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(96) / 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(106) / 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(88) / 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(108) / 评论(0) 分类 Scientific American(三)月

The Power Of Love 歌手:Celine Dion 专辑:Grammy1995 The whispers in the morning Of lovers sleeping tight Are rolling like thunder now As I look in your eyes I hold on to your body And feel each move you make Your voice is warm and tender A lov

发表于:2019-01-10 / 阅读(125) / 评论(0) 分类 英语歌曲收藏之一

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(146) / 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(109) / 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(77) / 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(85) / 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(131) / 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(123) / 评论(0) 分类 VOA常速英语2007年(十一月)

专辑名称:You Are Free 专辑歌手:Cat Power 发行日期:2003-2-18 专辑类型: Indie Rock Sad-Core 专辑介绍: 此专辑发行于03年, 化名Cat Power的女歌手Chan Marshall,是欧美音乐界低调的异类,她以钢琴、吉他为主要演绎乐器, 其歌曲以低调民谣为主要特色,有时也

发表于:2019-02-04 / 阅读(163) / 评论(0) 分类 音乐咖啡厅

At age 89, Mary Fasano graduated with a bachelor s degree from the Extension School last week and entered the history books as the oldest person to earn an undergraduate degree at Harvard. Following is the speech she delivered -- The Power of Knowled

发表于:2019-02-04 / 阅读(112) / 评论(0) 分类 阅读空间

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(105) / 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(113) / 评论(0) 分类 双语有声阅读
学英语单词
achiness
alcids
aur
backyardism
bank-led
barophil
be pulled out from the ground
bosphorus
brake-cabin
cassida crucifera
chugalugged
citronellols
Coast of Labrado
completion window
crediblest
demer
diss tracks
dry crystallizing
e.p.d.
electromagnetic interactions
electron beam pumping semiconductor laser
emission spectrum instrument
equitable tax system
fallation
ferroprussiate process
glass-ceramic mirrors
goal review interval
gonions
goya y lucientess
hcab
hereditary rachitic disease
hospital gown
hot-end coating by spraying
hydrazo radical
independent pipeline
inverse relation
Joliot
kawasaki diseases
kilted sausage
lathe
law of energy
long welded rail track
loseable
lower derived function
mahaffy
Maillol
mixers
multicombustion chamber
municipal Wi-Fi
murin
musteloid
Negaunee
ophioglossum vulgatum l.
OVTR
Panurge
Pascorbic
pendulum crane
pharyngealizations
photograph parallel
piece basis
piss-warm
plan of production and finance
positive displacement flowmeter
practical surveying
predictable
prestressing force
production overheads
profits squeeze
pungy
radius of switch
rebury
resubstitutes
riddle-me-rees
Roser-Braun sign
rotary accelerator
Sanoyie
Schwanebeck
screw augers
self-operated control
shearable
side trimming line
skysport
sole puncture
sort collate operation
sprinkle fire extinguisher
straightenings
strong-acid cure leaching
superswell
tax motivated
tedder and rake
terestrolumbrolysin
threat score
Thylox process
tod
training stick
truck turtle
Umred
unparseable
visibility of fringe pattern
von Braun reaction
weight-to-volume ratio
you'd