Unverified75% confidenceFactTime unknown
背胶的初粘力与持粘力是两个指标：初粘力决定贴上瞬间是否牢固，持粘力决定长期不脱落；潮湿油污环境应关注持粘力，选丙烯酸压敏胶而非普通热熔胶
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