From the energy zone theory, we discuss the limit parameters for various materials, for solar cells.

本文从能带理论出发，讨论了各种太阳电池材料的光电转换极限参数。

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ONE reason for Japan’s reliance on nuclear power—with all its attendant difficulties of building reactors safely in an earthquake zone—is its lack of indigenous energy sources.

日本依赖核能的一个重要原因在于它缺乏固有的能源资源，伴随而来产生了必须要在地震带上建造安全的反应堆，但这是非常困难的。

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"When I say, 'be here with me now,' I mean don't zone out or get too in-your-head-instead, follow my energy, my movements," says Hayden.

“当我说‘现在跟我一起来’时，我的意思是不要走神或脑子里想太多——而不是仿效我的活力、我的动作，”海登说。

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And this looks a lot like the average valence electron energy where the lowest values of electronegativity are in the metallic zone and the highest values of electronegativity are on the nonmetallic zone.

这看起来像是平均电子能,最低的电负性在,金属区最高的电负性在,非电子区。

麻省理工公开课 - 固态化学导论课程节选

Meanwhile, Congress, when it returns from its Columbus Day recess next week, plans to resume work on a second package of new Hurricane Katrina-related tax breaks--a gumbo that could include everything from the Bush Administration's proposal for a new tax-favored "Gulf Opportunity" zone to more energy industry goodies.

FORBES: Tax Reform? Not Exactly

Called Zone Green, it will promote energy efficiency by making it easier to add photovoltaic panels, wind turbines, greenhouses and shading devices to the roofs and sides of older buildings.

WSJ: Zoning Laws Grow Up | By Julie V. Iovine

One problem is that this hospitable zone can shrink or expand over the lifetime of a star, as its energy fluctuates.

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