Unverified90% confidenceDecision RuleTime unknown
承载精装书/艺术画册的层板,跨度≤80cm且厚度≥18mm的板材或≥25mm的实木才能避免中间下弯,跨度超过90cm必须加中立柱或选金属背拉杆结构
1
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90%
Confidence
Long-term
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