这套系统既可以探测铁板的敲击声，又能分辨出具体被击打的铁板，从而指示敲击者所处位置。
The system could detect if a plate was being hammered and which one, thus indicating the location of the person hitting it.
这种状况在较重的颗粒被风吹起再落回地面，从而对块状物进行敲击和摔打后发生。
That happens when heavier particles are lifted by the wind and then fall back to the ground, hammering and shattering the dust-clumps as they do so.
音叉被敲击时，产生几乎纯质的音调，其音量经久不衰。
When it is struck, a tuning fork produces an almost puretone, retaining its pitch over a long period of time.
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