different specific speed的用法和样例：
- Analyzing of the Axial Hydro-thrust Test for Francis Turbine at Different Specific Speeds
- In RCH, you can take various training courses for different specific subjects.
- In this paper, the structure, principle and performance of a low specific speed roto-jet pump are introduced.
- It is suggested that the specific speed would be replaced by diametric ratio,and the new nameplate would be used.
- It needs steel rolled to 300 different specifications.