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
消
器采用稀土小球为催剂，用
频带加权优法优选消器结构参数，取得良好的消、性
。
OFDM (Orthogonal Frequency Division Multiplexing) is a method that can combat multipaths, fully use the frequency band and has high data rate, and has a promising future in UWA communication.
摘
频分复用(OFDM)技术具有抗多径、频带利用充分、传输数据率高的优点，在水通信中具有重的发展前景。
明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指
。
