 |
| |||
| 水库淤积物; 水库泥沙; 水库沉积 (物) | |||
| reservoir sediment: 15 phrases in 3 subjects |
| Electronics | 2 |
| Hydroelectric power stations | 7 |
| Technology | 6 |
|
| |||
| 水库淤积物; 水库泥沙; 水库沉积 (物) | |||
| reservoir sediment: 15 phrases in 3 subjects |
| Electronics | 2 |
| Hydroelectric power stations | 7 |
| Technology | 6 |