acoustic characteristic

例句：

1. 1. The sound of the piano isa beautiful example of its acoustic characteristic.
   钢琴的声音是其声学特性的一个美妙例子。
2. 2.Acoustics is an important field inscience that studies the properties of sound waves.
   声学是一门重要的科学领域，研究声波的特性。
3. 3. The acoustics of the roomwere so bad that we couldn'thear each other speak.
   房间的声学效果很差，我们听不清彼此说话。