lossless cavity

例句：

1. 1. The engineer designed a lossless cavity for the speaker to improve its sound quality.
   工程师为扬声器设计了一个无损腔体，以提高其音质。
2. 2. In the field of acoustics, lossless cavities are used to achieve high-quality sound reproduction.
   在声学领域，无损腔体被用来实现高质量的声音再现。
3. 3. The lossless cavity technology has revolutionized the way we listen to music and movies.
   无损腔体技术已经彻底改变了我们听音乐和电影的方式。