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40D及以下低旦数尼龙面料轻但耐磨性差，易被地面尖锐物刺穿，无防刺垫时建议选70D底面或搭配地布使用

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Unverified面料为30D/40D规格，在同价位充气垫中属于轻薄面料，耐刺穿性相对有限，石地或砾石地面使用建议搭配地布87% similar Unverified轻量充气垫多用20D-30D尼龙面料，耐磨性差易被枝石扎破，建议搭配地布或泡沫垫使用；追求耐用可选70D及以上厚面料86% similar Unverified面料20D以下的超轻充气垫刺穿风险高，需搭配地布使用；30D-75D面料更耐磨，适合无地布直接铺在有碎石的地面86% similar Unverified面料丹尼数（D）反映耐刺穿性：底面20D以下超轻款需搭配地布使用防扎破，未做防护直接铺草地/碎石地不建议选20D以下款86% similar Unverified面料为30D/40D轻薄尼龙，耐刺穿性有限，使用时建议在帐篷地布内侧铺设，避免直接接触碎石或粗糙地面以防漏气84% similar

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