振動最怕是共振。
所有跟帖:
• 主要是最後停止前的敲擊蓬蓬聲,頻率很低0.5-0.8秒一次吧連續幾次十幾次。 -chinomango- ♂ (0 bytes) () 09/29/2021 postreply 21:49:38
• 主要是最後停止前的敲擊蓬蓬聲,頻率很低0.5-0.8秒一次吧連續幾次十幾次。 -chinomango- ♂ (0 bytes) () 09/29/2021 postreply 21:49:38
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