 |
| |||
| 空气组成; 空气成分; 大气组成; 大气成分 | |||
| air composition: 6 phrases in 5 subjects |
| Agriculture | 1 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Rail transport | 1 |
| Technology | 2 |
|
| |||
| 空气组成; 空气成分; 大气组成; 大气成分 | |||
| air composition: 6 phrases in 5 subjects |
| Agriculture | 1 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Rail transport | 1 |
| Technology | 2 |