Unverified82% confidenceDecision RuleTime unknown

帐篷防水看面料涂层与耐水压：主流采用280-320g聚酯棉（poly-cotton）透气防结露，或PU涂层涤纶耐水压≥3000mm；雨季多雨地区应选耐水压≥5000mm或封胶接缝款

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Unverified户外场景优先选210D以上牛津布或涂层尼龙材质，防水指数需达PU1000mm以上才能应对小雨；普通聚酯纤维仅防泼溅81% similar 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81% similar

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