A researcher at the Chinese Acade⁃my of Sciences????Institute of Deep⁃sea Sci⁃ence and Engineering,Li Songhai leads one of the nation????s deep⁃sea marine mam⁃mal research teams.He said the team com⁃prises about 20 people who are“physical⁃ly,mentally and spiritually tested”by the harsh conditions for oceanic expeditions in the South China Sea.
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