Unverified80% confidenceDecision RuleTime unknown
选购时看圈体外周是否有牢固的抓手绳（救生索），环绕直径3/4以上并每隔一段用夹子固定于圈体，这是落水者抓握的关键，玩具泳圈通常无此配置
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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