Unverified83% confidenceDecision RuleTime unknown
热水注入型（暖水袋式护具）成本低、无电磁隐患，但需注意注水口密封与外壳PVC材质耐温性，劣质款易漏水烫伤；应选注水口带双重锁扣、外套绒布隔热的产品
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83%
Confidence
Long-term
Relevance
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