[KongchangAI]
Unverified70% confidenceDecision RuleTime unknown

浪涌吸收能量用焦耳(J)衡量,家用插排选≥1000J可满足日常防浪涌,保护贵重设备建议≥2000J;仅几百焦耳的廉价产品几乎无实际防护价值

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