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可听声频率 声频
soundfrequency  detail>>
可听声频率
audio frequency sound frequency  detail>>
可听声频率范围
audiofrequency range audiorange  detail>>
可听声频率 音频 成声频率
audiofrequency  detail>>
可听声频范围,可听音频范围
audible frequency range  detail>>
声频
audio frequency; sonic frequency; acoustic frequency; audible frequency  detail>>
超声频率
super audible frequency superaudio frequency superaudiofrequency supersonic frequency...  detail>>
成声频率
audio frequency  detail>>
电声频率计
electroacoustic frequency meter  detail>>
口声频率
voice frequency  detail>>
声频率计
audiofrequency meter  detail>>
声频频率计
audio frequency meter sonic frequency cymometer  detail>>
声频上频率
superaudio frequency  detail>>
亚声频率
infra-acoustic frequency  detail>>
语频,口声频率
speech frequency  detail>>
噪声频率
noise frequency  detail>>
频率;声音频率;声频
frequency  detail>>
可听声
audible sound  detail>>