 |
| 调查报告: 42 phrases in 14 subjects |
| Aviation | 4 |
| Business | 5 |
| China | 1 |
| Earth sciences | 2 |
| Economy | 3 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| International Monetary Fund | 1 |
| International trade | 2 |
| Securities | 2 |
| Shipbuilding | 2 |
| Space | 2 |
| Technology | 15 |
| Water resources | 1 |