1)  comparison
比转
2)  Specific speed
比转速
1.
Selection of specific speed of pump turbine for Wulongshan pump storage power station;
乌龙山抽水蓄能电站水泵水轮机比转速选择
2.
Influences of the leakage rate of low specific speed Francis runner on phenomenon of the lifting hydroelectric generator set;
低比转速转轮泄漏量对水电机组抬机的影响
3.
A new method for statistical analysis of specific speed n_s of turbine;
统计分析水轮机比转速n_s的一种新方法
3)  low specific speed
低比转速
1.
Method of estimating eighth section area of low specific speed pumps;
低比转速离心泵蜗壳第八断面面积确定新方法
2.
Criteria of blade number selection for low specific speed impeller;
低比转速叶轮叶片数的选择准则
3.
Numerical computation of inner flow passing through low specific speed compound impeller of centrifugal;
低比转速离心泵复合叶轮内部流动的数值计算
4)  high specific speed
高比转速
1.
Analysis of flow in a high specific speed mixed flow compressor;
高比转速斜流叶轮流场分析
2.
The investigation on high specific speed pump system in eastern route of the South-to-North water diversion project of China;
南水北调工程高比转速水泵装置的有关问题研究
3.
Design and mapping of impeller blade of centrifugal water pump of high specific speed;
高比转速离心泵叶轮的设计与绘型
5)  low-specific-speed
低比转速
1.
Numerical analysis on two-phase flow through impeller of low-specific-speed centrifugal pump;
低比转速离心泵叶轮内固液两相流的数值分析
2.
Optimum design of low-specific-speed high-speed centrifugal pump based on genetic algorithm;
基于遗传算法的低比转速高速泵优化设计
3.
Two low-specific-speed high-speed impellers with four-long blades and four-long four-short blades were investigated when the axial clearance was 1.
1 mm的4长叶片和4长4短叶片的两种半开式低比转速高速离心叶轮进行了研究。
6)  low specific speed
低比转数
1.
Internal flow characteristics measurement in low specific speed centrifugal impeller;
低比转数离心泵叶轮内部流动的测量
参考词条
补充资料：泵比转数
分子式：
CAS号：

性质：泵分类的一种依据，也是用来判别泵工况的一个相似准数。用符号ns表示。由离心泵的流量、扬程和转速等几个表征工况的参数所组成，按最高效率点值求得。几何相似的离心泵比转数相同；比转数不同的离心泵，其几何形状一定不相似；比转数相同的离心泵，其几何形状一般是相似的，实际应用中，常按比转数的大小对各种离心泵进行分类，其中比转数在30～300间的称离心泵，300～500间的称混流泵，500～1000间的称轴流泵。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。