Description: Head observed at inlet area of the installation, corresponding to the sum of the height, pressure head and velocity head  ; Name: Total head at inlet area of the installation
Description: Determined total head at the inlet area of the installation, which corresponds to the sum of geodetic head, pressure head and velocity head; Name: Total head at inlet area of the installation
Description: A suitable, minimum (usually rounded) value of a frequency which is used for the description, designation or identification of a part, device, operating resource, facility or set of equipment; Name: Min. nominal frequency