The importance of the PV energy sector can be gauged by the presence of oil majors such as Shell and BP, whose solar cell production have reached 6% and 7% of the global market respectively in 2004.

光伏能源行业的重要性可以通过壳牌和英国石油这样的石油巨头在这一行业的存在来衡量，他们2004年的太阳能电池产量已经分别占到了全球市场的6%和7%。

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Tow parts are included in the paper: the study on the single crystalline silicon selective emitter solar cell and study on optimum slope design in PV engineering.

本文含有两方面的研究内容：选择性发射极太阳电池的研究和光伏工程最佳倾角的设计研究。

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PV grid-connected inverter solar cell output DC into AC meet the requirements of the public grid and into the power grid equipment.

光伏并网逆变器是将太阳能电池所输出的直流电转换成符合公共电网要求的交流电并送入电网的设备。

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