[能源] 太阳热水系统效率

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(87) / 评论(0) 分类 Scientific American(十二)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

发表于:2019-01-02 / 阅读(58) / 评论(0) 分类 农业与发展

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(105) / 评论(0) 分类 Scientific American(四)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

发表于:2019-01-11 / 阅读(59) / 评论(0) 分类 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

发表于:2019-01-12 / 阅读(29) / 评论(0) 分类 2016年VOA慢速英语(五)月

Volunteers Help Scientists in Search for Cheap Solar Cells Most of today's solar cells are silicone-based and their manufacture requires sophisticated machinery and expertise. An average home in the United States uses between 20 and 24 kilowatt hours

发表于:2019-01-14 / 阅读(40) / 评论(0) 分类 VOA标准英语2013年(七月)
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