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This undated file photo shows a rock painting featuring animal figures in Jiayuguan City, northwest China s Gansu Province.Gansu Province has set up a digital image database for rare and precious rock paintings at its 72 cultural relic sites, local authorities said.(Dunhuang Academy/Handout via Xinhua)
This undated file photo shows a rock painting featuring animal figures in Jiayuguan City, northwest China s Gansu Province.Gansu Province has set up a digital image database for rare and precious rock paintings at its 72 cultural relic sites, local authorities said.(Dunhuang Academy/Handout via Xinhua)
LANZHOU, June 12 (Xinhua) Northwest China s Gansu Province has set up a digital image database for rare and precious rock paintings at its 72 cultural relic sites, local authorities said.