Staff members repair a broken porcelain at the archaeological workstation under the management office of Yuanmingyuan in Beijing, capital of China, Dec. 24, 2020. Recently, Beijing's Yuanmingyuan, or the Old Summer Palace, has launched the third phase of a restoration project to repair broken cultural relics that had been unearthed. The Old Summer Palace was sacked and destroyed in 1860 during the invasion of Anglo-French allied forces. (Xinhua/Luo Xiaoguang)

A staff member lays a repaired porcelain at the archaeological workstation under the management office of Yuanmingyuan in Beijing, capital of China, Dec. 24, 2020. Recently, Beijing's Yuanmingyuan, or the Old Summer Palace, has launched the third phase of a restoration project to repair broken cultural relics that had been unearthed. The Old Summer Palace was sacked and destroyed in 1860 during the invasion of Anglo-French allied forces. (Xinhua/Luo Xiaoguang)

A staff member reconstructs unearthed porcelain fragments at the archaeological workstation under the management office of Yuanmingyuan in Beijing, capital of China, Dec. 24, 2020. Recently, Beijing's Yuanmingyuan, or the Old Summer Palace, has launched the third phase of a restoration project to repair broken cultural relics that had been unearthed. The Old Summer Palace was sacked and destroyed in 1860 during the invasion of Anglo-French allied forces. (Xinhua/Luo Xiaoguang)

A staff member lays a repaired porcelain at the archaeological workstation under the management office of Yuanmingyuan in Beijing, capital of China, Dec. 24, 2020. Recently, Beijing's Yuanmingyuan, or the Old Summer Palace, has launched the third phase of a restoration project to repair broken cultural relics that had been unearthed. The Old Summer Palace was sacked and destroyed in 1860 during the invasion of Anglo-French allied forces. (Xinhua/Luo Xiaoguang)

Cultural relics restoration expert Wang Mian shows a repaired glazed building component at the archaeological workstation under the management office of Yuanmingyuan in Beijing, capital of China, Dec. 24, 2020. Recently, Beijing's Yuanmingyuan, or the Old Summer Palace, has launched the third phase of a restoration project to repair broken cultural relics that had been unearthed. The Old Summer Palace was sacked and destroyed in 1860 during the invasion of Anglo-French allied forces. (Xinhua/Luo Xiaoguang)

Staff members repair a broken porcelain at the archaeological workstation under the management office of Yuanmingyuan in Beijing, capital of China, Dec. 24, 2020. Recently, Beijing's Yuanmingyuan, or the Old Summer Palace, has launched the third phase of a restoration project to repair broken cultural relics that had been unearthed. The Old Summer Palace was sacked and destroyed in 1860 during the invasion of Anglo-French allied forces. (Xinhua/Luo Xiaoguang)

A staff member reconstructs unearthed porcelain fragments at the archaeological workstation under the management office of Yuanmingyuan in Beijing, capital of China, Dec. 24, 2020. Recently, Beijing's Yuanmingyuan, or the Old Summer Palace, has launched the third phase of a restoration project to repair broken cultural relics that had been unearthed. The Old Summer Palace was sacked and destroyed in 1860 during the invasion of Anglo-French allied forces. (Xinhua/Luo Xiaoguang)

A staff member lays a glazed building component to be repaired at the archaeological workstation under the management office of Yuanmingyuan in Beijing, capital of China, Dec. 24, 2020. Recently, Beijing's Yuanmingyuan, or the Old Summer Palace, has launched the third phase of a restoration project to repair broken cultural relics that had been unearthed. The Old Summer Palace was sacked and destroyed in 1860 during the invasion of Anglo-French allied forces. (Xinhua/Luo Xiaoguang)

A staff member uses an airbrush to add glaze color to a porcelain under repair at the archaeological workstation under the management office of Yuanmingyuan in Beijing, capital of China, Dec. 24, 2020. Recently, Beijing's Yuanmingyuan, or the Old Summer Palace, has launched the third phase of a restoration project to repair broken cultural relics that had been unearthed. The Old Summer Palace was sacked and destroyed in 1860 during the invasion of Anglo-French allied forces. (Xinhua/Luo Xiaoguang)