Unverified72% confidenceTradeoffTime unknown
密度越高越耐压、缓冲越好但越硬越贵，且高密度对精密表面（如镜面、漆面）反而可能因回弹力过强产生局部压痕，精密件宜配软质低密度做贴身层
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72%
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Long-term
Relevance
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