ventilation rate

例句：

1. 1. The building has a high ventilation rate to keep the air fresh.
   这座建筑有很高的通风率，以保持空气新鲜。
2. 2. The hospital is equipped with advanced ventilation systems to ensure patient safety.
   医院配备了先进的通风系统，以确保患者的安全。
3. 3. The new design of the ventilation system greatly improves the indoor air quality.
   新设计的通风系统大大提高了室内空气质量。