Superseded82% confidenceTradeoffTime unknown
剪刀锋利度越高剪切越省力，但过薄刀刃遇到硬物（如安全带、厚牛仔布）易崩口；创伤剪应选厚实钝刃+锯齿辅助，牺牲精细度换取耐用与安全
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82%
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This knowledge claim has been superseded by newer content
折叠刀不适合作为主力求生刀：折叠机构是应力薄弱点，重砍时锁定可能失效伤手。求生场景应选固定刀(fixed blade)，折叠刀仅作精细任务备用Sources
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