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2024 Changchun Intl Optoelectronic Expo opens

chinadaily.com.cn | Updated: 2024-06-19 11:32
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A staff member from the Changchun University of Science and Technology demonstrates a minimally invasive surgical navigation system at the 2024 Changchun International Optoelectronic Expo in Changchun, Northeast China's Jilin province, on June 18, 2024. [Photo/Xinhua]
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