| |||
live air | |||
ozone | |||
outdoor air | |||
fresh air | |||
| |||
fresh air |
新鲜空 气 : 41 phrases in 12 subjects |
Agriculture | 1 |
Architecture | 1 |
Automobiles | 9 |
Earth sciences | 1 |
Electronics | 4 |
General | 2 |
Life sciences | 1 |
Metallurgy | 1 |
Plastics | 1 |
Refrigeration | 2 |
Technology | 17 |
Wind Energy | 1 |