Unverified86% confidenceDecision RuleTime unknown
规格选择要按『膨胀后体积』而非平铺尺寸：一床冬季厚被约需70×100cm（特大号），普通薄被或3-4件毛衣用60×80cm（大号），装满后应留约20%冗余空间否则封口处易漏气
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Unverified尺寸选购按容纳被褥换算：一床冬被(约2-3kg)需70×100cm以上大号，双人厚被建议80×110cm；换季衣物用60×80cm中号足够，买大不买小以免抽气时封口挤压漏气92% similarUnverified尺寸选择按物品体积预留20%空间：大号(70×100cm)约装2床薄被或6-8件冬装，中号(50×70cm)适合换季衣物，塞太满会导致封口受力漏气92% similarUnverified尺寸选择应按物品预留20%余量：60x80cm约装1-2件冬季外套，80x100cm(特大)适合一床冬被，抽气后厚度会压缩至原体积30-40%，装太满反而封不严92% similarUnverified存放一床冬季加厚被（如1.5米床2kg以上羽绒被或棉被）需选60L以上容积；若同时收纳枕头需80-100L；标称容积需预留20%冗余，压缩后实际填充率不宜超过80%91% similarUnverified尺寸选择参考：一件冬季厚外套约需60×80cm，一床双人加厚棉被需100×120cm以上，压缩后厚度约为原体积1/3，衣柜层高需匹配90% similar
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