Glossary

That section of a floor or roof between two principals or girders.

1. To cover one building material with another. 2. Same as casing, 1. 3. The housing containing a lock mechanism.

A viscous material applied to a vibrating surface, such as a metal panel, to reduce the noise which it radiates.

A refrigeration system consisting of two or more refrigerant circuits, each with a pressure-imposing element, condenser, and evaporator; the evaporator

The dissipation of energy with time, e.g., the dissipation of energy in a mechanical system whose free oscillations decrease with