Unverified78% confidenceDecision RuleTime unknown
跨度超过45cm的宽柜应选带中间独立支撑脚的型号，仅靠两端撑紧的伸缩隔板中部承重能力随跨度增大骤降
1
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78%
Confidence
Long-term
Relevance
-
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Unverified伸缩式分层架的稳定性依赖两侧支撑点，柜内宽度越大晃动越明显，跨度超过60cm建议选中间带额外支撑腿的款式87% similarUnverified柜内宽度超过60cm且需承重时不建议只用纯顶撑式隔板，跨度过大中部无支撑会明显下垂，应选带中间支撑腿或分段固定款86% similarUnverified伸缩范围越大的架子，拉到最大宽度时中段承重能力下降越明显（跨度大易变形下垂）。追求大跨度就要接受中间承重打折，或选择带中间支撑脚的款式83% similarUnverified45cm长度适合局部滚压（小腿、大腿外侧等），但不适合做背部大面积滚压，背部使用建议选60cm以上规格82% similarUnverified三脚/单脚支撑的边几比四脚更省地、易移动，但重心偏移时稳定性差，台面直径超过45cm应选四脚或宽底盘款81% similar
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