Unverified50% confidenceFactExact time

氦气属于不可再生资源，其在大气中含量仅约0.0005%，会持续逸散出大气层无法回收

1

Sources

50%

Confidence

Long-term

Relevance

7/18/2026

First Seen

Sources

Keio University's Helium-Filled Flying Robots: Designing Soft AI Companions

Related Claims

Unverified氦气密度约为空气的1/7，填充足够体积后可产生可观的净升力73% similar Unverified即便采用专业气密材料，一般每月也会损失1-3%的氦气体积71% similar

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