Unverified90% confidenceTradeoffTime unknown
承重与免打孔的权衡:真空吸盘式免打孔扶手承重通常仅标称几十公斤且随吸附面老化失效,只适合心理辅助或健全人临时借力,绝不能作为老人防跌倒的正式承重扶手
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90%
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Long-term
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