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China's unmanned submersible Qianlong 3 to conduct first dive

chinadaily.com.cn | Updated: 2018-04-20 10:27
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An April 15 photo shows Dayang Yihao, which carried the unmanned submersible Qianglong 3 and a research group of 70 people from Xiamen to the South China Sea. [Photo/Xinhua]
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