vent rib

例句：

1. 1. The engineer designed the vent rib to improve airflow in the room.
   工程师设计了通风管来改善房间的气流。
2. 2. The chimney was used to vent the smoke from the fireplace.
   烟囱被用来排放壁炉的烟雾。
3. 3. The flue is a crucial part of the heating system that allows for proper ventilation.
   烟道是供暖系统的关键部分，它允许适当的通风。