Linking the efficiency of drip irrigation to the reliability of a solar-powered water pump, the PVDI systems need no batteries, gas, or kerosene.

这一系统将滴灌的高效性与太阳能水泵结合起来，它既不需要电池与汽油，也不需要煤油。

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ECO CITY will use wind energy to generate 10% of the complex's power (more than any other high-rise in the world), as well as solar water heating systems and solar-powered lighting technology.

ECO CITY将利用风能产生所使用复合能源的10%(这个值要大于世界上其他任何高层建筑)，同时它还将采用太阳能热水系统以及太阳能照明技术。

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They include advanced, membrane-filtered wastewater treatment systems, solar-powered, high-efficiency lighting and natural gas combined-cycle turbines that will deliver power, heating and cooling.

它们包括先进的薄膜过滤污水处理系统、高效的太阳能照明，以及用于供电、供热和制冷的天然气联合循环涡轮机。

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The solar-powered irrigation systems produced an average of nearly two metric tons of vegetables per month.

VOA: special.2010.01.11

The research team helped build three solar-powered drip irrigation systems in northern Benin.

VOA: special.2010.01.11

For the executive venturing to extreme locales, where power resources may not be readily at hand, there's the solar-powered laptop bag, built by Voltaic Systems.

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Energy efficient appliances and windows, foam insulation, heating and cooling systems powered by geothermal, solar panels, and wind mills have all quietly begun invading new construction, particularly in the luxury end of the market.

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Kirk Flittie, who manages the Global Observer program for AeroVironment, says operating costs are low because the plane doesn't have to take off and land very often and it uses propulsion systems and electronics developed for the company's high-flying solar-powered planes.

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