ashpan blower valve

例句：

1. 1.The ash pan blower valve is responsible for controlling the airflow in the furnace.
   排风扇阀门负责控制炉内的空气流动。
2. 2. The engineers were tasked with replacing the ash pan blower valve.
   工程师们被指派更换排风扇阀门。
3. 3. The new ash pan blower valve has improved efficiency by up to 20%.
   新的排风扇阀门提高了效率，最高可达20%。