| A roof with corrugated sheeting with flat, V-angled surfaces.
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| A symbol for vertical shear.
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| Veterans Administration.
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| The uncoated portion of a finished object; also called Skips and Holidays.
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| 1. An electrical breaker with a space that contains rced air pressure. 2. A device which prevents the formation of a vacuum in a water supply pipe; installed to prevent backflow.
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| One of several types of suction devices used to collect dirt from the bottom of a swimming pool; these units work in a variety of ways - some force collected dirt to the filter, others to the waste drain, or into a porous container.
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| Intake manifold vacuum is used to operate dampers and controls in some automobile systems.
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| Instrument used to measure pressures below atmospheric pressure.
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| The pipe from the suction side of a pump connected to a vacuum fitting located at the pool and below the water level to which underwater cleaning equipment may be attached.
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| special high efficiency device used for creating high vacuums for testing or drying purposes.
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| 1. A space absolutely devoid of matter. 2. Pressure lower than atmospheric pressure.
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| Thin sheet metal used to line the valley of a roof.
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| A diagonal rafter that supports a roof valley.
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| 1. An elongated depression in the earths surface between two raised areas. 2. A trough or internal angle formed by the intersection of two roof slopes.
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| The opinion of a real estate appraiser as to the value of a parcel of real property.
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| The process of analyzing the cost versus the value and alternative materials, equipment, and systems.
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| The assets of a company in terms of dollar value.
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| 1. The worth of something measured monetarily. 2. Term used to distinguish dark colors from light ones; dark values are known as shades; light values as tints.
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| Part of a compressor located between the top of the compressor body and the head, containing compressor valves and ports.
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| see Suction Valve.
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| see Expansion Valve.
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| see Solenoid Valve.
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| see Suction Valve.
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| see Tapping Valve.
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| see Water Valve.
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| Numerous mechanical devices by which the flow of liquid, gas, or loose material in bulk may be started, stopped, or regulated by a movable part that opens, shuts, or partially obstructs one or more passageways.
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| A brown pigment which consists of decomposed vegetable matter that has almost approached the coal state; it is weak in hiding power compared to umber and sienna.
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| 1. A hard gray malleable ductile metallic element found in several ores and used as an alloy in small quantities for strengthening some steels. 2. Vanadium steel.
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| A revolving pointer mounted on a high place to show the direction of the wind.
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| Case, box, or piece of furniture which rests on the floor and receives a lavatory, commonly has shelves and doors and is primarily used as storage for below lavatory.
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