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An electric current that varies periodically in value and direction, first flowing in one direction in the circuit and then […]

A change in work, 1 described in the contract documents for a building that gives the owner the option of

1. A construction project (or portion of a project) comprising revisions within or to prescribed elements of an existing structure,

Construction in a building which may change the structural parts, mechanical equipment, or location of openings, but does not increase

A raised tomb, or monument covering a tomb, whose shape resembles an altar.

A decorative screen, painting, or sculpture above the back of an altar.

A flat stone or slab forming the top of an altar.

A richly decorated partition of stone, wood, or metal, separating the altar from the space behind it.