| 1. | Round - trip propagation time
往返传播时间 |
| 2. | Round trip propagation time
往返传播时间 |
| 3. | One - way propagation time
单向传播时间 |
| 4. | The main results of the paper are as follows : ( 1 ) research on flood propagation time
其主要研究成果如下： ( 1 )水量传播时间研究。 |
| 5. | The start points of output strain and reflect strain can be got by calculating propagation time of elastic wave through the bars
反射波和透射波的起点根据波在杆中的传播过程来计算。 |
| 6. | The prediction period of flood forecast is decided by the flood propagation time to a great extent , and its shorter or longer play an important role in decision of construction scheme during flood period
洪水预报的预见期主要由水量传播时间决定，预见期的长短对施工渡汛方案的制定有决定性作用。 |
| 7. | By studying on different operation mode and different interval flood of longyangxia reservoir , as well as the flood propagation time , pre - alarm scheme is established , which can alarm in order to lower construction losses when flood is in excess of standard
通过研究龙羊峡水库的不同运行方式和不同频率的区间洪水，以及水量传播时间的研究，得出预警方案，当发生超标准洪水时，提前报警使施工损失降低到最小。 |
| 8. | Based on analyzing discharge data in guide , xunhua , tongren hydrologic station and river course character , propagation time of different discharge in different river course is presented , and prediction period of interval flood , main stream flood during construction and operation period are acquired
通过对贵德、循化、同仁水文站流量资料以及河道特性的分析研究，得出不同流量在不同河道上的传播时间，归纳出区间洪水和干流洪水在施工期和运行期的预见期。 |
| 9. | Combined with the significant project - gongboxia hydro - power station construction , emphasized on construction during flood period of power station construction period , the climate character of the upstream of yellow river basin and the practice operation state of cascade reservoirs are analyzed , some problems in construction during flood period such as flood propagation time , interval flood discharge forecast , construction risk , flood period pre - alarm and longyangxia reservoir ' s function on construction of gongboxia are also studied , with an aim at presenting real interval flood forecast scheme and dispatching method , so as to provide technological support for gongboxia hydro - power station construction period
本论文结合国家重点工程项目?公伯峡水电站的建设，以电站建设期施工渡汛为研究重点，从实施出发，分析黄河上游气候特性和梯级水库群的实际运行状况，对施工渡汛中的主要问题?洪水流达时间、区间洪水预报、渡汛风险、汛期预警、龙羊峡水库在渡汛中的作用等进行了比较全面深入的研究，目的在于提出可用于实际的区间洪水预报方案和调度方法，为公伯峡水电站施工期建设提供技术支撑。 |
