breather valve

例句：

1. 1. The engineer installed the breathing valve in the exhaust pipe to improve efficiency.
   工程师在排气管中安装了呼吸阀，以提高效率。
2. 2. The hospital's emergency room is equipped with a high-quality breathing valve to ensure patient safety.
   医院的急诊室配备了高质量的呼吸阀，以确保患者安全。
3. 3. The construction company used a special breathing valve to prevent dust from entering the building during the construction process.
   建筑公司使用了一种特殊的呼吸阀，以防止施工过程中的灰尘进入建筑物。