1. 声波频谱：sound propagation 声波传播 | sound spectrum 声波频谱 | sound wave 声波;音波
2. 单道闪烁辐射测井仪：soil moisture,声源 | sound spectrum,单道闪烁辐射测井仪 | single-speed floating action,烧结式气敏元件
sound spectrum
noun
1. the distribution of energy as a function of frequency for a particular sound source
Synonym: acoustic spectrum