[KongchangAI]
Unverified85% confidenceTradeoffTime unknown

降落伞信号火箭射高约300米以上且红光悬挂燃烧约40秒,夜间可见距离远优于手持火焰信号,但白天在强光条件下可见性显著下降

1
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85%
Confidence
Long-term
Relevance
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