backup
backup 1. That part of a masonry wall behind the exterior facing. 2. A compressible material used behind a sealant […]
General
General
backup protection
In an electrical system, a type of protection initiated by a sensing device that detects a failure of a protective
General
backup rod
A strip of plastic foam that is inserted in a joint to limit the penetration of sealant into the joint.
General
backup strip
A piece of wood at the corner of a ceiling and side wall; serves as the mounting for the ends
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backup strip, lathing board
A wood strip which is fixed at the corner of a partition or wall to provide a nailing surface for
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backwater valve, backflow valve
A type of check valve in a drainage pipe; reversal of flow causes the valve to close, thereby cutting off
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bacterial corrosion
A corrosion which results from substances (e.g., ammonia or sulfuric acid) produced by the activity of certain bacteria
General
badger plane
A hand plane, the mouth of which is cut obliquely from side to side, so that it can work close