Description: maintenance time after a component has broken down; Name: breakdown maintenance time
Description: Part of the maintenance time when active corrective maintenance is carried out on an item, including technical, logistic and internal administrative delays ; Name: Corrective maintenance time
Description: determined through a surface, product of the sound pressure, p, and the component of the particle velocity, un, at a point on the surface in the direction normal to the surface, integrated over that surface; Name: sound power