Unverified82% confidenceDecision RuleTime unknown
气囊型手环的浮力需匹配体重:单气瓶提供约6-8kg浮力,成人(60kg以上)应选双气瓶或浮力≥10kg型号,儿童单气瓶足够。浮力不足会导致触发后仍下沉
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