软硬和强度不是一回事. 材料高强度高变形就可以吸收能量，石头再硬也吸不了能，泡沫软变形大但力小所以吸能也低。

来源: BeyondWind 于 2015-09-30 19:06:07 [旧帖] [给我悄悄话] 本文已被阅读：次

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