JCQ depurant-muffler is adopted on 49ZQ engine using small rare-earth element balls as catalyst and took the method of quadrature frequency band optimization to opetmize the configuration parameters.
用于492Q发动机的JCQ净化
声器采用稀

为催化剂,用正交频带加权优化法优选
声器结构参数,取得良好的
声、净化性
。

正交频分复用(OFDM)技术具有抗多径、

着雪
的时
,


