sound reduction factor

例句：

1. 1.The sound reduction factor is a crucial factor in the design of soundproofing materials.
   声学减缩因子是设计隔音材料时至关重要的因素。
2. 2. The sound reduction factor is used to calculate the effectiveness of noise-cancelling headphones.
   声学减缩因子用于计算降噪耳机的有效性。
3. 3. The sound reduction factor can be adjusted to optimize the performance of the acoustic system.
   声学减缩因子可以被调整以优化声学系统的运行性能。