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1·This article focuses on Kaplan turbine model characteristics.

本文着重对轴流转桨式水轮机的特性进行建模。

2·Therefore, the study for internal flow characteristics of Kaplan turbine has important theoretical and practical significance.

因此，展开轴流转桨式水轮机内部流动特性的研究具有重要经济意义。

3·The structural characteristic and machining method of runner blade servomotor piston ring for large Kaplan turbine are studied.

对大型轴流转桨式水轮机转轮接力器活塞环的结构特点及加工方法进行了研究分析。

4·Therefore, it is very important and significant to investigate the interior flow characteristic of Kaplan turbine running in silt-laden river.

因此，展开含沙河流中轴流转桨式水轮机内部流动特性的研究具有重要的理论意义与实际应用价值。