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China showcases latest advances in metrology at Hunan exhibition

By LI MUYUN in Changsha and ZHU YOUFANG in Hengyang, Hunan | chinadaily.com.cn | Updated: 2025-11-11 20:13
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The 2nd Metrology Instrumentation and Equipment Exhibition opens in Hengyang, Hunan province, on Tuesday. [Photo by Zhu Youfang / chinadaily.com.cn]
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