| The ratio of useful work performed to the total energy expended or heat taken in.
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| A deposit of water soluble salts on the surface of masonry or plaster caused by the dissolving of salts present in the masonry; migration of the solution to the surface and deposition of the salts when the water evaporates; the surest preventative of efflorescence is to keep water out of masonry; the process of efflorescing is also referred to as Whiskering or Saltpetering.
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| Fluid discharge from a sewage system.
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| A decorative carved molding consisting of alternating egg-shaped and arrow-shaped parts.
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| Finish that closely resembles the luster of an egg shell.
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| 1. The texture of a fired glaze similar in appearance to the surface of an eggshell. 2. Chip-cracked plaster, either base or finish coat; the form taken is concave to the surface and the bond is partially destroyed.
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| The way out; exit.
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| 1. Environmental Impact Assessment. 2. Electronic Industries Association.
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| Exterior Insulation Finish System.
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| A pipe fitting which allows the run of pipe to make a 45 degree bend.
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| Membrane is generally reinforced with polyester fabric. Resists fire, chemicals, oils and tears.
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| Environmental Impact Report.
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| Environmental Impact Statement.
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| Device which uses high fluid velocity, such as a venturi, to create low pressure or vacuum at its throat to draw in fluid from another source.
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| A mechanical or electronic device which measures the passage of time.
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| An analysis of deformations and internal forces based on equilibrium, compatibility of strains, and assumed elastic behavior and representing to suitable approximation the three dimensional action of the structural shell together with its auxiliary members.
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| The largest stress which a material can withstand without being permanently deformed.
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| A thin, pliable roofing material that is able to expand and contract to its original size regardless of weather conditions.
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| In prestressed concrete, the shortening of a member which occurs on the application of forces induced by prestressing.
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| Able to return to its original size and shape after removal of stress.
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| Any of various elastic substances resembling rubber; a material which at room temperature can be stretched repeatedly to at least twice its original length and, upon release of the stress, will return with force to its approximate original length.
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| A rubber-like material used as flashing on a roof system.
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| Having the characteristics of an elastomer.
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| A rubber-like sheet material used as a roof covering.
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| A spring-loaded device consisting of a rocker arm and angle strike, for locking the inactive leaf of a pair of cabinet doors.
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| A pipe fitting having two openings which allows a run of pipe to change directions.
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| A tank in which water is heated or hot water is stored, controlled by an electric current.
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| A small flexible insulated electrical cable having a plug at one or both ends used to connect a power tool or mechanical device with a receptacle which supplies electric current.
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| Use of electric resistance heating coils to melt ice and frost off evaporators during defrosting.
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| see Electric Traction Elevator.
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