| 1. | In arid climates, surface water is generally better than ground water in headwater areas, but poorer downstream . 在干旱气候的上游区,地表水一般较地下水好,但下游的地表较差。 |
| 2. | It will lengthen as a result of headwater erosion and, thereby, will cut a valley through both hard and soft rock . 由于向源侵蚀的结果,它不断延长并且穿过软硬岩石从中切出一条河谷来。 |
| 3. | Conclusion : water quality of the headwater is bad 结论:该市农村水源水水质差。 |
| 4. | Study on runoff forecast of baihe river basin in headwater region of the yellow river 黄河源区白河流域径流预报研究 |
| 5. | A study of the geological environmental of suprapermafrost water in the headwater area of the yellow river 黄河源区冻结层上水地质环境影响研究 |
| 6. | Establishment of management tables system for water amp; amp; soil conservation and headwater conservation forest 水源涵养林经营数表编制系统的研制 |
| 7. | Study on soil and water conservation function of main vegetation category soil in headwater region of the huangpu river 黄浦江源区主要植被类型土壤水土保持功能研究 |
| 8. | According to the requirements of sustainable development in the headwater region of xiaofu river , the groundwater pumping is planned using the optimal control model 最后直接根据淄博市孝妇河源头地区地下水资源的可持续利用需求,建立了该区的地下水最优控制模型,并求得了最优解。 |
| 9. | The results showed that the fractal dimensions of the main stream and down stream gauging staitions were higher those that of the tributary , headwater gauging stations 结果显示,同一流域干流的日径流过程分维值要明显大于支流的分维值,下游大于上游, 4个水文站分维值年际变化趋势基本保持一致。 |
| 10. | Abstract : to improve water quality of a running water plant , headwater of which is the fuyang river in handan city . using bone glue as a coagulant , the static and unstatic experiments are carried out , the optimum bone glue dosage is found out 文摘:针对邯郸市滏阳河水的水质特点及地表水厂的现状,在不进行大规模的土建改造和大幅度提高运行费用的前提下,采用骨胶作为助凝剂,进行静态实验和动态实验,寻找出骨胶的最佳投量范围,达到了改善水质的目的。 |