Unverified85% confidenceDecision RuleTime unknown
试穿检测法:穿好后拉住肩部浮力块向上提,若救生衣上移超过耳朵或能从头部脱出,说明尺码过大或未系胯下带。合格状态下应贴身不上窜,孩子能自由抬臂
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85%
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Long-term
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