Unverified80% confidenceTradeoffTime unknown
带弹簧/浮球密封的机械防臭款密封性强,但弹簧长期在潮湿环境易生锈卡死;硅胶T型/翻盖式密封结构简单不怕锈,但深水封干涸后会失效——南方潮湿地区优先硅胶,北方干燥地区优先带存水结构
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80%
Confidence
Long-term
Relevance
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