free air meaning in Chinese
大气，大气层的空气。
Examples
- Educate the public about the importance of smoke - free air for children
教市民无烟环境对儿童的重要性。 - Marine oil - free air compressor for control use - technical specifications
船舶控制设备用无油空气压缩机技术条件 - Marine oil - free air compressor for control use - technical specifications
船舶控制设备用无油空气压缩机技术条件