江苏智能板式换热机组派斯特水水换热机组,贵州最好的板式换热器生产厂家价格、选型 ... acoustical damper 消声器 acoustical material 传声[声学]材料 acoustical thermometer 声学温度计[一种通过测量在某种气体中的声速来计温的温度计，用于测深低温] ...
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Acoustical Material Association 声学材料协会
underwater acoustical material 水声材料
sprayed-on acoustical material 喷涂吸声材料
versatile acoustical material 多效吸音材料
porous acoustical material 多孔吸声材料 ; 多孔性吸音材料
Acoustical Insulating Material Association 隔音材料协会
The most important acoustical property is the sound insulating or absorbing quality of the material.
最重要的声学特性是隔音或吸音材料的质量。
Sound absorption and insulation is the acoustical characteristic of material. Measurement of sound absorption and insulation has an important significance in noise control and acoustical design.
吸声与隔声是材料的声学特性，吸声与隔声测量对噪声控制与声学设计具有重要意义。
The beautiful sound acoustical engineering devotes to the architectural acoustics space design, and provides the acoustic material and the installment construction Specialized company.
玉音声学工程致力于建筑声学空间设计，并提供声学材料和安装施工的专业公司。
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