[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

水上头盔必须带排水孔且孔径足够大(通常直径≥8mm),落水后能快速排水避免头盔灌水下坠拉扯颈部;封闭式无孔头盔严禁用于翻船风险场景

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