Description: Determined difference between the total head at the outlet side of the pump and the total head at the inlet side of the pump; Name: total head of the pump
Description: Difference between the total head at the outlet side of the pump and the total head at the inlet side of the pump ; Name: Pump total head
Description: During a given period of time, percentage of the time during which an item was able to perform when required ; Name: Time based availability