Scientists are trying to make direct use of solar energy on a large scale .

科学家们正试图大规模地直接利用太阳能。

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Water-cooling of this sort may also make a more direct contribution to the reduction of greenhouse-gas emissions, by promoting the use of solar energy.

通过增加对太阳能的使用，这类水冷方法可能会对减少温室气体排放作出直接贡献。

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Water-cooling of this sort could also make a more direct contribution to the reduction of greenhouse-gas emissions, by promoting the use of solar energy.

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