单词：piston wave power device
单词：piston wave power 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
One of the newest sources of alternative energy is also one of the oldest - water power. The 19th century water wheel, though, bears no resemblance to the 21st century contraptions powered by ocean waves. The wave energy sector has been slow to coale
VOA标准英语2010年(十一)月
美国动力公司研发提升五成油效对置活塞二冲程发动机 This little engine looks like it has only three pistons, but in fact, it has six, sharing only three cylinders. 这台小身材引擎看起来只有3个活塞,但事实上却有
VOA标准英语2016年(三月)
[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
(THEME) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Faith Lapidus with the VOA Special English program EXPLORATIONS. You are listening to our program today on a radio. Almost no communication would exist in the world without the electromag
2018年VOA慢速英语(九)月
EXPLORATIONS - The Story of Radio By Paul Thompson Broadcast: Wednesday, June 01, 2005 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: Satellite technology can broadcast radio anywhere. And this is
Explorations
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
Waves 波浪 A wave is the movement of water. 波浪是水的运动。 Why do waves happen? 波浪是怎么产生的呢？ Waves are made when the wind blows over the surface of water. 风吹水面就会产生波浪。 On the beach, you probably watc
与美国小学生一起学英文第10册
US Agency Announces Wave Energy Prize Competition 美国能源部发起能源奖竞争 Experts say that sun and wind are the richest sources of clean, renewable energy. But ocean waves also create powerful, clean energy. So, the U.S Department of Ene
2015年VOA慢速英语(五)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
By Greg Flakus Albuquerque, New Mexico 25 July 2007 Large scale collection of solar power arrays As the world searches for ways to produce energy without burning fossil fuel, there is increased interest in solar energy. One place associated with sola
2007年VOA标准英语（七月）
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)
This Internal Combustion Engine is 50% More Efficient 新型内燃机效率提高50% Internal combustion engines in cars may be on their way out, but experts agree it will take a few decades before electric-powered vehicles become dominant. Meanwhile
VOA标准英语2016年(三月)
Harnessing Ocean Wave Power Provides Cheap Electricity 利用海洋波浪提供廉价电力和饮用水 WASHINGTON An often overlooked renewable energy resource is the power of ocean waves. Scientists in California say harnessing energy from the regu
VOA标准英语2014年(三月)
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
A group of senior students from Zhejiang University have successfully developed an air hand-washing device. 浙江大学的一队大四学生成功研制出了空气洗手装置。 The device utilizes an infrared ray induction system, which detects t
英语新闻
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
The death toll from the heat wave currently gripping India has surpassed 13-hundred, with temperatures soaring above 47 degrees in certain parts of the country. Southern India's Andhra Pradesh has recorded over a thousand deaths. From last one week,
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