digital currency 2021 Top Featured snippets

1. UAV: the eye of the air in coastal defense and frontier defense.Second, the meeting point between the needs of coastal defense islands and border defense and unmanned technology2. Unmanned driving: an intelligent helper for land and sea transportation

2. Task execution in dangerous environment3. Efficient logistics support needsFirst, the frontier development and multiple capabilities of unmanned technology

2. Security and confidentiality issues2. Security and confidentiality issuesUnmanned science and technology: a new boost to coastal defense islands and border defense.