Relocatable sound insulation partitions between classrooms reducing soundinterference between two rooms.
安装隔音墙于课室之间，减少相互间的声音干扰。
2
Relocatable sound insulation partitions between classrooms, reducing soundinterference between two rooms.
安装隔音墙于课室之间，减少相互间的声音干扰。
3
For instance, when two very similar musical notes are played together, there's an interference effect that causes the sound to wobble between loud and soft, producing "beats."