 |
| |||
| 海洋、陆地、大气 | |||
|
sea, land, air : 16 phrases in 8 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Earth sciences | 4 |
| Electronics | 2 |
| Space | 4 |
| Technology | 1 |
| Textile industry | 1 |
| United Nations | 1 |
|
| |||
| 海洋、陆地、大气 | |||
|
sea, land, air : 16 phrases in 8 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Earth sciences | 4 |
| Electronics | 2 |
| Space | 4 |
| Technology | 1 |
| Textile industry | 1 |
| United Nations | 1 |