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Aerial photo of heliostats of molten-salt solar thermal power plant in China's Gansu

Source: Xinhua| 2019-10-24 22:14:27|Editor: Yurou
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CHINA-GANSU-DUNHUANG-SOLAR POWER-HELIOSTAT-CLEANING (CN)

Workers clean heliostats for a molten-salt solar thermal power plant in Dunhuang, northwest China's Gansu Province. (Xinhua/Ma Ning)

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