environmental control system

例句：

1. 1.The environmental control system is designed to regulate the air quality in the city.
   环境控制系统旨在调节城市空气质量。
2. 2. The new environmental control system will greatly reduce pollution levels.
   新的环境控制系统将大大减少污染水平。
3. 3. The company has invested heavily in developing an advanced environmental control system.
   该公司大量投资于开发先进的环境控制系统。