Description: Period of time during which an item performs its intended function, it includes all the time a machine is continuously running from start-up until it is shut down.; Name: ot
Description: passed time period after comissioning of a system, sub-system, component or piping; Name: Operating time 
Description: Method of change to and adjustment of the volume flow of the piston pump, e.g. speed, piston stroke; Name: Type of control