Unverified80% confidenceSolutionTime unknown
投掷救生圈(硬质救援圈)与佩戴式游泳圈是两类产品:救援用应选带≥15米投掷绳、能抓握的硬圈,佩戴戏水圈不适合当救援工具抛投
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Long-term
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