动力轴线

该河段水流的动力轴线的变化和摆动是常态。

Changing and swing of the axis of flow power is normality .

分析了小黄洲汊道：上游段水流动力轴线的典型位置、转化周期及其对汉道演变的影响；

The typical position of power axis of flow in the upper reach , conversion periodic and the in-fluence on the bed development of Xiao Huang Zhou Reach are analysed .

作为尝试，文中基于对水流动力轴线、自然岸线、堤防线等河势特征曲线进行系统的频率分析，提出了可用的相关判定参数。

As an attempt in this paper , the available related judgment parameters are found based on the systematical analysis of characteristic curves of flow dynamic axis , bank line and levee line .

当小流量时水流动力轴线的位置取决于主槽的位置，当大流量时水流动力轴线的变化规律接近矩形断面的情形。

The position of power axis of flow is determined by main channel when runoff is small , while the change law conforms with the law of rectangular section when runoff is large .

在沿江地带，根据自然演变和经济发展，提出扬州沿江地带保护自然发展动力轴线、强化经济轴线的总体布局；

Among the agglomeration along the Yangtse River , according to the natural succession and economic development , the structure that preserving the natural development axis and strengthening the economic axis was formed .

水轮发电机组轴系动力特性分析及轴线精度检测方法研究

Analysis of Dynamic Characteristics of Rotor-Bearing System of Hydropower Unit and Study on Measurement Method of Axis Precision