高音扬声器[词典]highpitchloudspeaker;treblefrequencyloudspeaker;[例句]采用真空阴极电弧沉积技术，在纯钛球顶高音扬声器振膜上镀类金刚石膜，成为类金刚石/钛复合振膜刘扬声。DLCfilmshavebeendepositedontheloudspeakerdiaphragmofpureTibymeansofvacuumcathodicarcdepositiontoproduceDLC/Ticompositediaphragm.