Unverified85% confidenceDecision RuleTime unknown
只有弹性绳收口的防雨罩在大风中易被掀飞，长途户外应选带底部十字扣带或胸腹交叉固定绳的款式
1
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85%
Confidence
Long-term
Relevance
-
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Unverified底部收口弹性绳固定方式简单，大风环境下如果背包外挂物多或形状不规则，防雨罩容易被吹开或松脱88% similarUnverified强风环境下仅靠底部束绳固定容易兜风鼓起甚至被吹脱，缺少额外的肩带/腰带固定扣，不适合高海拔或风口暴露路段作为主要防雨方案87% similarUnverified大风环境下底部松紧收口固定力一般，风大时雨罩容易被吹起或兜风，需要额外用绳扣加固或搭配背包自带的固定带使用86% similarUnverified底部有防脱扣带或环绕式抽绳的设计比单纯松紧口固定更牢，无底部固定的背包罩在大风或快走时易被掀翻83% similarUnverified后跟拉链款穿脱方便但拉链处是主要渗水点，选带防水挡片（storm flap）覆盖拉链的款式；纯松紧套入款防水性更好但穿脱费力且易撑破82% similar
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