The indoor air quality

• 空气品质

The indoor air quality的用法和样例：

例句

1. Indoor air quality can be improved efficiently.
   可以有效提高室内空气品质。
2. The results show that spiral flow ventilation is economical in improving air distribution and indoor air quality.
   结果表明，旋流通风方式用于改善气流组织和室内空气品质是经济可行的。