Unverified83% confidenceDecision RuleTime unknown
松紧带腰头的二手裤（运动裤/休闲裤）关注橡筋老化：松紧带回弹力衰减不可修复，测试方法为拉伸至松弛后观察是否恢复原长，老化橡筋会永久性变松或断裂内嵌
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83%
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Long-term
Relevance
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