| An arc-welding process wherein coalescence is produced by heating with an electric arc maintained between two metal electrodes in an atmosphere of hydrogen; shielding is obtained from the hydrogen; pressure may or may not be used and filler metal may or may not be applied.
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| Process of changing a liquid to minute particles or a fine spray; break steam into small particles.
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| Device by which air is introduced into material at the nozzle to regulate the texture of machine-applied plaster.
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| A central courtyard with surrounding rooms opening off it.
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| A device which, byINSERTion in a receptacle, establishes connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle.
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| Material utilized to help in the rction of the energy or intensity of sound.
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| The rction of the energy or intensity of sound.
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| A partition in an attic, from roof to ceiling level, dividing the attic into discrete areas to prevent the spread of smoke and drafts.
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| Treated shreds of cellulose material that are blown into attic spaces or fiberglass rolls that are rolled out between ceiling joists to aid in weatherproofing a building or facility.
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| 1. Openings in the roof or in gables for the purpose of allowing air to circulate. 2. Mechanical devices with power-driven fans to force the circulation of air.
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| A room or space immediately below the roof of a building.
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| A qualified lawyer licensed to practice.
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| A person acting for another under the authority of a power of attorney.
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| A cable over which the transmission, reception, or reproduction of sound is carried.
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| A device that responds to the physical stimulus of sound and transmits a resulting impulse.
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| Involving both sight and sound.
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| Acoustical, mechanical or electrical frequencies used in the transmission, reception or reproduction of sound.
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| A formal examination and report of a persons or entitys financial condition, usually by a qualified certified public accountant.
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| A building or room where an audience sits.
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| A rotating drill with a screw thread used to drill deep, straight, and narrow holes for the installation of fence posts.
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| An instrument or device used for boring or forcing through materials or soil.
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| One who is properly authorized to perform specific duties under the conditions existing, usually in relation to a contract.
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| 1. An apparatus for lifting automobiles in order to have access to the carriage underneath. 2. An apparatus used to move automobiles up and down in a parking structure.
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| An electrical transfer switch that operates automatically.
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| Steam curing of concrete products, sand-lime brick, asbestos-cement products, hydrous calcium silicate insulation products, or cement in an autoclave at maximum ambient temperatures generally between 340 and 420° F (170-215° C); also called High Pressure Steam Curing.
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| A pressure vessel in which an environment of superheated steam at high pressure may be produced; used for sterilizing, assisting a chemical reaction, in the curing of concrete products, and in the testing of hydraulic cement.
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| A factory-produced building stone; precast, lightweight concrete, in the form of large building blocks, panels, or planks; made of closed cell concrete steam cured in a pressurized autoclave.
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| Valve action reached through self-operated or self-actuated means, not requiring manual adjustment.
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| A control system in which the opening and closing of the weigh hopper discharge gate, the bituminous discharge valve, and the pugmill discharge gate are actuated by means of self-acting mechanical or electrical machinery without any intermediate manual control. The system includes preset timing devices to control the desired periods of dry and wet mixing cycles.
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| System of removing ice and frost from evaporators automatically.
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