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3. Efficient logistics support needsUnmanned science and technology: a new boost to coastal defense islands and border defense.Unmanned science and technology: a new boost to coastal defense islands and border defense.

Unmanned science and technology: a new boost to coastal defense islands and border defense.

Second, the meeting point between the needs of coastal defense islands and border defense and unmanned technologyUnmanned technology: coastal defense, islands and frontier defense's new help to defend the motherland.