Description: Reliability of an object, which is determined by design planning and manufacture under expected operating and maintenance conditions; Name: Reliability that's expected
Description: Reliability of an item determined by design and manufacture under expected conditions of operation and maintenance ; Name: Expected reliability
Description: 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