Description: Length of time that maintenance is performed on an object, including technical, logistical, and internal administrative delays; Name: time for maintenance 
Description: Time interval when maintenance is carried out on an item including technical, logistic and internal administrative delays; Name: Maintenance time
Description: A suitable, maximum (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: Max. nominal frequency