sonic fineness tester

例句：

1. 1. This sonic fineness tester is used to measure the acoustic properties of materials.
   这个声学细度测试仪用于测量材料的声音属性。
2. 2. The engineer used the sonic fineness tester to check the quality of the new product.
   工程师使用声学细度测试仪检查新产品的质量。
3. 3. The sonic fineness tester was used to determine the sound absorption of the building's walls.
   声学细度测试仪被用来测定建筑物墙壁的吸声性能。