[KongchangAI]
Unverified76% confidenceSolutionTime unknown

判断真空保温饭盒质量的家庭测试法:装满95℃热水拧紧,1小时后手摸外壁——真空层完好的外壁应接近室温微温,若外壁发烫说明真空层失效或非真空结构

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