Unverified85% confidenceDecision RuleTime unknown
书架承托板宽度≥18cm且底部有防滑硅胶垫的机型，才能稳定支撑500页以上厚书不打滑；窄于15cm的多为平板专用支架，放厚书会前倾
1
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85%
Confidence
Long-term
Relevance
-
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