Unverified80% confidenceDecision RuleTime unknown
选带浮力(可漂浮)或带系绳孔的信号镜用于水上活动,普通信号镜落水即沉,皮划艇、船钓、海钓场景必须确认防水漂浮设计
1
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80%
Confidence
Long-term
Relevance
-
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