最終更新日：2025/12/08
The coastal survey team charted the currents of the Sombrero Channel to improve safe passage between the Nicobar group's northern islands and the southern islands of Great and Little Nicobar.
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The coastal survey team charted the currents of the Sombrero Channel to improve safe passage between the Nicobar group's northern islands and the southern islands of Great and Little Nicobar.
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