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耐水压越高的面料往往涂层越厚、重量越大、透气性越差，帐内易凝露；三季露营选1500-2000mm兼顾轻量与透气即可，无需盲目追求5000mm以上高山级面料

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Unverified帐布耐水压底布应≥3000mm、外帐≥1500mm才能应对持续降雨；但耐水压过高的厚底布会增重，超轻帐常用低耐水压底布需搭配地布使用85% similar Unverified材质越厚实(克重高)越耐用但越干得快，含水量与厚度需平衡；追求超厚湿巾时要确认单片含水量足够(优质产品湿巾含水量约为自重2-3倍)79% similar Unverified防水压越高的涂层（如3000mm硅胶）罩体越厚重、收纳体积越大，超轻款（20g级）多为1000mm涂层，长期强降雨会渗水78% similar

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