Description: highest head of a pump if it is not reached atzero flow rate; Name: peak head
Description: Highest total head developed by a pump when this does not occur at a zero rate of flow; Name: Head at peak point
Description: translation i of a pair of gears or a multiple gear pair is the ratio of the angle speed wa (or the speed na) of the first driving wheel to that of the last driven wheel wb (or nb); Name: Transmission ratio of the transmission