| 1. | Knowledge of historic and present water demands is needed to provide a factual base for predicting future water demand .
应了解过去和当前的需水量，以便为估算未来的需水量提供实施依据。 |
| 2. | Discussion on research of ecological water demand
生态需水量估算问题的初步探讨 |
| 3. | Research progress in ecological water demand of rivers
河流生态需水量研究进展 |
| 4. | Progress of study on water demand of river ecology
河流生态需水量研究进展 |
| 5. | Water demand calculation of minimal river ecology
河流最小生态需水量计算 |
| 6. | A study of ecological water demand quantity at zhalong wetland
扎龙湿地生态环境需水量研究 |
| 7. | Study on ecological environment water demand in momoge marsh
莫莫格湿地生态环境需水量研究 |
| 8. | Ecological water demand of gonghe basin in qinghai province
青海共和盆地生态需水研究与计算 |
| 9. | Research on the calculating method eco - environmental water demand
生态环境需水计算方法研究 |
| 10. | Study on ecological water demand in arid area of northwestern china
西北干旱区生态需水研究 |
