fume vent line

例句：

1. 1. The factory has a fume ventline that helps to reduce the amount ofharmful gases released into the air.
   工厂有一个烟道通风管，有助于减少释放到空气中的有害气体。
2. 2. The construction workersinstalled a new vent line to improvethe air quality in the area.
   建筑工人安装了一个新的通风管，以提高该地区的空气质量。
3. 3. The fume vent line is essentialfor maintaining a healthy indoor environment.
   烟道通风管对于保持室内空气健康至关重要。