small noise tube

例句：

1. 1. The small noisetube is used to filter outunwanted sounds in a quiet environment.
   这个小型噪音管用于在安静的环境中过滤掉不需要的声音。
2. 2. The engineer carefully assembled thesmall noise tube before testing it.
   工程师在测试之前仔细组装了这个小型噪音管。
3. 3.The small noise tube was designed to improvethe sound quality of the recording equipment.
   这个小型噪音管被设计用来提高录音设备的音质。