Unverified85% confidenceDecision RuleTime unknown
金属书立厚度≥1.5mm且底板长度≥7cm才能有效抵抗精装书倾倒,薄于1.2mm的钢板在放置3-4本精装绘本时容易向外弯折塌陷
1
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85%
Confidence
Long-term
Relevance
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