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| 水污染: 840 phrases in 37 subjects |
| Agriculture | 5 |
| Animal husbandry | 2 |
| Automobiles | 1 |
| Bridge construction | 1 |
| Business | 3 |
| China | 4 |
| Commerce | 4 |
| Construction | 1 |
| Desert science | 2 |
| Drilling | 3 |
| Earth sciences | 39 |
| Ecology | 48 |
| Electronics | 14 |
| Engineering geology | 18 |
| Environment | 19 |
| Explosives and Explosive Ordnance Disposal | 4 |
| Fish farming pisciculture | 1 |
| General | 5 |
| Hydroelectric power stations | 8 |
| International trade | 1 |
| Librarianship | 2 |
| Life sciences | 1 |
| Management | 1 |
| Metallurgy | 11 |
| Name of organization | 3 |
| Nautical | 5 |
| Nuclear and fusion power | 2 |
| Nursing | 1 |
| Oil / petroleum | 11 |
| Project management | 1 |
| Shipbuilding | 1 |
| Space | 3 |
| Swimming | 1 |
| Technology | 508 |
| United Nations | 3 |
| Water resources | 101 |
| Wind Energy | 2 |