compressed air supply

例句：

1. 1.The hospital uses a compressed airsupply to maintain the cleanliness of itsoperating rooms.
   医院使用压缩空气供应来保持手术室的清洁。
2. 2. The fire department relies ona compressed air supply to extinguish fires quickly.
   消防部门依靠压缩空气供应迅速扑灭火灾。
3. 3. Theconstruction site has a compressed airsupply system that ensures workers are well-ventilated and safe.
   施工现场有一个压缩空气供应系统，确保工人通风良好且安全。