Unverified80% confidenceDecision RuleTime unknown
旗面材料选PVC涂层布或牛津布优于普通无纺布,无纺布在紫外线下2-3个月即褪色发白失去荧光警示功能;带反光条边框的旗面夜间效果提升显著
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
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