单词：solar water heating system
单词：solar water heating system 相关文章
Lesson 55 astronomy 天文学 Recent developments in astronomy 天文学的最新发展使我们 may have made it possible to detects in our own Milky Way and in other galaxies. 能够在银河系和其他星系发现行星。 The objective of astron
新概念英语词汇随身听手册3
Section 49 Water H2O, have you ever thought how important it is to us? Ah, that’s water, isn’t it? Yes. And without it, we can’t live. I know that. I drink it everyday in tea, coffee and juices.
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Technology Report - How to Make Your Own Solar Water Heater This is the VOA Special English Technology Report. Solar water heaters are used around the world and are not very difficult to build. The system we are going to describe is based on a design
2011年VOA慢速英语(四)月
DEVELOPMENT REPORT – How to Make a Solar Water Heater By Gary Garriott Broadcast: Monday, November 29, 2004 I'm Gwen Outen with the VOA Special English Development Report. Solar water heaters save o
农业与发展
This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan
Scientific American(八)月
The clues are adding up to give a picture of a distant Martian past, when the planet had a thick atmosphere that was warm enough for water to stream on the surface. But now the waters gone, and the atmosphere is so thin that any water would boil away
Scientific American(十)月
This is the VOA Special English Development Report. Solar water heaters are devices that use energy from the sun to heat water. Solar water heating is used around the world. An example of a rooftop solar water heater being built in South Africa The
VOA慢速英语2009年（四）月
Solar Cooker Reduces Smoke Pollution Deaths 太阳能灶可降低烟气污染导致的死亡 Solar power technology could help to reduce deaths caused by household pollution. 太阳能科技有助于降低由家庭污染造成的死亡。 Pollution t
2016年VOA慢速英语(五)月
By Uma Ramiah Dakar 21 May 2008 A year-old project in Benin has shown that harnessing the power of sunlight could provide long-term solutions to hunger in underdeveloped nations. A six-month dry season in the Kalale District of Benin used to wreak ha
VOA标准英语2008年（五月）
New design produces flexible panels using only 1-2 percent as much silicon Art Chimes | Washington, DC 19 February 2010 You can use 100 times less silicon. And that's potentially very significant. Harry Atwater Schematic diagram of the light-trapping
VOA标准英语2010年(二月)
This was the first permit of its kind in Oregon. 下面是这类技术在俄勒冈州第一个通过法令的例子。 Brave and open-minded people sat down and felt comfortable saying, Yeah, that shit makes sense. 勇敢而心胸开阔的人们在圆桌
TED演讲科学篇
Todd: Devon, I hear that you took the train across Russia. Devon: Yes. I started in Moscow travelled through Russia, Mongolia and ended up in China. Todd: Wow! That's a long way. Devon: Yes, it was. It took three weeks. I did it as part of a tour wit
英语趣味课堂
EXPLORATIONS - Development Marketplace: Turning Ideas Into ActionBy Jill Moss Broadcast: Wednesday, May 17, 2006 (MUSIC) VOICE ONE: I'm Barbara Klein. VOICE TWO: And I'm Steve Ember with EXPLORATIONS
2006年慢速英语（五）月
This is the VOA Special English Development Report. Harvest in Benin A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers. The study in Benin found that solar-powered pumps are
2010年慢速英语(一)月
The more you know about the various heating systems that are available on the market today, the better able you will be to choose the best one for your home. Obviously, your main goal (besides being comfortable), is to have a heating and air conditio
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In Colorado, Solar Industry Faces Challenges Colorado's San Luis Valley, an alpine desert, is rapidly becoming a leading producer of solar energy in the United States. The sun shines more than 340 days a year in the San Luis Valley. So the solar indu
VOA标准英语2011年(十二月)
BEIJING, Oct. 21 (Xinhuanet) -- A team of European researchers announced that they have found vast water vapor out of our solar system, according to a study in the U.S. journal Science Friday. Using Herschel Space Observatory, a European Space Agency
英语新闻
My name is Johan, I feel exhausted, already. I've been doing this job for two days and I've already lost a lot of weight,really. You can earn 100 dollars a day, maybe more than that, 200. It depends, but, it's still a good money. This is the best job
英语杂谈
If you visit upland areas of Britain places like the mountains of Scotland, or Wales, or the Pennine Hills in northern England you will see a lot of sheep. Many of the sheep are in places where there are no walls or hedges to keep them in their field
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