| 摘要 |
A small-volumed shock-cushioning structure SA of the present invention guarantees absorption of shocks of different magnitudes associated with two different states of a hard disk, and thereby to effectively protect the hard disk from the shocks of different magnitudes. The shock-cushioning structure SA includes a first shock-cushioning material CAL having a first stress-strain characteristic AL with a first effective cushioning stress, and a second shock-cushioning material CAH having a second stress-strain characteristic AH with a second effective cushioning stress greater than the first effective cushioning stress of the first stress-strain characteristic AL.
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