 |
| |||
| horizontal distribution | |||
| 水平分布: 9 phrases in 5 subjects |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Technology | 5 |
|
| |||
| horizontal distribution | |||
| 水平分布: 9 phrases in 5 subjects |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Technology | 5 |