| |||
| 震源组合 | |||
| |||
| 复合污染源; 多源污染 | |||
| ★ 多信源 | |||
| 多源; 多光源 | |||
| 复合污染源; 多点污染源 | |||
| 复合源 | |||
|
multiple sources : 27 phrases in 11 subjects |
| Air defense | 1 |
| Aviation | 3 |
| Chemistry | 1 |
| Computer networks | 1 |
| Earth sciences | 2 |
| Electronics | 4 |
| Geophysics | 1 |
| Information technology | 1 |
| Refrigeration | 2 |
| Technology | 10 |
| Water resources | 1 |