Unverified83% confidenceDecision RuleTime unknown
容量选择留出30%余量：卷口袋装满后无法留足卷折长度会漏水，标称20L实际有效装载约14L
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Unverified折叠包宣称的容量（如20L）在满载时会因面料软塌导致实际可用空间缩水20-30%，选购时按标称容量的0.7倍估算实际承载87% similarUnverified干袋会预留卷口占用空间，标称容量（如20L）在卷紧密封后实际可用约14-16L；打包时应按标称容量的70%装填，否则无法卷够圈数导致密封失效85% similarUnverified卷口袋容量标称与实际可用容量差距大：卷合3圈会消耗约1/4长度，标注20L实际有效装载约14-15L，选容量时留出30%余量84% similarUnverified卷口袋标称容量指未卷封状态，实际卷封后可用容量约为标称的60-70%；20L干袋卷封后实用容量约12-14L，购买时容量应按需求上浮一档84% similarUnverified容量选择留20%余量：标称100L的袋子实际有效填充约80L，填太满会导致封口无法完全密封、压缩后棱角刺破膜层83% similar
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