[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

救生圈实际浮力承重应≥14.5kg(能在水中支撑铁块24小时不下沉),船用SOLAS标准要求圈体能承托4kg铁块,成人体重70kg以上者需选浮力标注≥100N的款式

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