knocking noise 中文意思是什麼
knocking noise
解釋
敲擊噪音-
Digital displayer, pleasing massage on the neck, rollers moving up and down along the back, multiple modes for intelligent controlling, soft artificial sponge inside, conveying structures without noise, arc wheels massaging up and down integrated with knocking and vibration
屏面數碼顯示，舒適的頸部按摩，上下式滾背按摩及多種智能控制模式，柔性人造海綿內膽，靜音傳動機構，其將弧擺上下移動和叩擊振動有機相結合。 -
A new type of wavelet - exponential damping wavelet is constructed to detect the knocking sound caused by mechanical faults in an engine, experimental results show that by this wavelet effective features of those faults can be extracted from noise signal
為了識別發動機噪聲信號中表徵故障的間歇性撞擊聲，本文構造的一種新型的小波指數衰減型小波函數，它能有效地識別出間歇性撞擊聲。
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