声振动特性
sound vibration properties
振动器振动参数
vibrating parameters of vibrator
带扬声器的无绳电话机
cordless telephone with speakerphone
电动扬声器
dynamic speaker
dynamic loudspeaker
dynamic loud speaker
electrodynamic loudspeaker
loud-speaker
dynamic
感应式电动扬声器
induction dynamic loudspeaker
高音电动扬声器
high volume electric speaker
扬声器的信噪比
signal to noise ratio of the loudspeaker