Unverified85% confidenceFactTime unknown
反光标识(如背包反光条、太空毯)在夜间被搜救灯或车灯照射时可反光被发现，太空毯银面还兼具保温，是极轻(约50g)的低成本被动求救辅助
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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