 |
| |||
| 外界空气 | |||
| 大气 | |||
| 环境空气 | |||
| 大气、周围的空气 | |||
| 环境大气 | |||
| 周围空气 | |||
| ambient air: 48 phrases in 15 subjects |
| Automobiles | 8 |
| Aviation | 1 |
| Bridge construction | 1 |
| Business | 1 |
| Desert science | 1 |
| Earth sciences | 1 |
| Ecology | 5 |
| Electronics | 2 |
| Environment | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Refrigeration | 3 |
| Space | 2 |
| Technology | 18 |
| Wind Energy | 1 |