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Experience the Huo-Yan Laboratory in Shijiazhuang

chinadaily.com.cn | Updated: 2021-01-10 15:31
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Testing staff speed up testing work at the Huo-Yan Laboratory in Shijiazhuang, North China's Hebei province, on Jan 10, 2020. [Photo by Wang Zhuangfei/chinadaily.com.cn]
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