Photo taken on June 9, 2022 shows the detail of a sculpture in the Maijishan Grottoes in Tianshui City, northwest China's Gansu Province. (Xinhua/Chen Bin)
Digital measurement, carbon-14 dating used in recording Maijishan Grottoes
Using digital measurement, carbon-14 dating and other technologies, all cultural relics information in cave 74 and cave 78 of Maijishan Grottoes in China has been recorded.
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