单词：power amplifying device
单词：power amplifying device 相关文章
AMERICAN MOSAIC - Is the Segway the Answer to City Traffic and Pollution?By Dana Demange and Nancy Steinbach Broadcast: Friday, August 11, 2006 HOST: Welcome to AMERICAN MOSAIC, in VOA Special English
2006年慢速英语（八）月
EXPLORATIONS -February 6, 2002: Increasing Hubble’s Power By Paul Thompson VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with the VOA Special English program EXPLORATIONS. Today
Explorations
[00:05.20]Nikola Tesla developed the alternating current power system that provides electricity in the United States. [00:14.42]Many of his other discoveries led to electronic inventions for which other scientists were honored. [00:22.75]Mister Tesla
美国英语听力80篇
Look at how lovely these things are. 看看这些东西是多么可爱 I mean, even when they're off 我是说即使不使用它们 they're beautiful to hold. 拿在手里都觉得漂亮 In their design,Jobs' went for simplicity above all else. 在他们
名人传记
(woman) Today we're going to practice evaluating the main tool used when addressing groups --- the voice. There are three main elements that combine to create either a positive or negative experience for listeners. They can result in a voice that is
托福听力短文
Device Keeps Internet On When Power Goes Off 断电仍可进行网络连接的设备 BERLIN A team of Americans and Kenyans has developed a new Internet router - and it's creating buzz. That's because it is an affordable, reliable solution for people
VOA常速英语2013年(九月)
SCIENCE REPORT – January 31, 2002: Hubble Improvements By Paul Thompson 1993 service flight This is the VOA Special English Science Report. American space agency astronauts will soon replace much of
科技之光
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Last month the journal Science reported that a Swedish company was planning on using the body heat generated by commuters in a Stockholm train station to
Scientific American(二)月
SCIENCE IN THE NEWS - Device Gives New Meaning to the Idea of Power Walking Also: A common disease many people have never heard of. And scientists say people with blue eyes are genetically related. Transcript of radio broadcast: 10 March 2008 VOICE
VOA慢速英语2008年（三）月
Which Apps Drain Your Phones Battery? 哪些应用程序耗尽你的手机电池？ Does your mobile phones battery die more quickly than it once did? Apps may be the problem. Even if you did not add new apps to your phone, an app update alone can us
2016年VOA慢速英语(四)月
AS IT IS 2015-10-06 Beach Mat Charges Mobile Phone 黎巴嫩小伙开发能为手机充电的沙滩垫 Some people do not like being separated from their telephone, even while enjoying a restful holiday at the beach. So, a university student from Leb
2015年VOA慢速英语(十)月
Device Keeps Internet On When Power Goes Off Erik Hersman and his team in Nairobi have created what they say is the first router made especially for Africa. It's battery powered and rugged. And it's gaining attention in Europe and the United States.
VOA标准英语2013年(五月)
New Zealand hasn't actually seen an increase in the amount of people doing sex work, 尽管无罪化让她们在新西兰从事更加安全。 but decriminalizing it has made it a lot safer. 性工作的人数并没有上升。 But the lesson from Ne
TED演讲国际问题篇
Voice 1 Hello. Im Marina Santee. Voice 2 And Im Mike Procter. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 In todays program
环球英语 Spotlight
Solar power 太阳能 The third way 第三种方法 A new method of making electricity from sunlight has just been tested 一种从太阳光得到能源的新方法正在尝试 AT THE moment, there are two reliable ways to make electricity from sunli
经济学人综合
BERLIN A team of Americans and Kenyans has developed a new Internet router - and it's creating buzz. That's because it is an affordable, reliable solution for people without consistent Internet access. It can run while plugged in or on battery power,
英语新闻
During her speech, Pritzker explains the central message of her visit to China and the U.S. side's approach to environmental protection. The central message of our visit is with responsible partnership we will do more business together and in doing s
英语新闻
Display screens 显示屏 Going through a phase 相转变 A new way to create electronic images 新的电子图案显示方法 Wave of the future? 未来之波 LIQUID-CRYSTAL displays are a familiar and ubiquitous technology. But if Harish Bhaskaran
经济学人科技系列
The movement of finger swipes may soon be able to charge our cellphones. 手指滑动的动作可能很快就可以为我们的手机充电了。 Researchers at Michigan State University have created a new way to harvest energy from human motion, usi
英语新闻