Unverified78% confidenceFactTime unknown
廉价PVC吸盘长期挤压后边缘会翻卷失去密封性，若吸盘留有橡胶气味或表面发白，说明已老化，吸力会随时间衰减
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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