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| Vacuum |
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Pressure less than atmospheric pressure. It is usually expresses in inches of mercury (in Hg) as referred to the existing atmospheric pressure.
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| Value-added product / value-added production |
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Adding value to a product by further processing it. Examples of value-added wood products include joinery stock, windows, doors, kitchen cabinets, flooring and mouldings. Value-added pulp and paper products include such items as packaging, diapers, coated papers, tissue, business papers and stationery, and other consumer paper products.
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| Valve |
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A device which controls fluid flow direction, pressure, or flow rate.
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| Velocity |
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The speed of flow through a hydraulic line. Expressed in feet per second (fps) or inches per second (ips).
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| Veneer |
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A thin layer or sheet of wood.
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| Veneer, rotary-cut |
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Cut in a lathe which rotates a log or bolt, chucked in the center, against a knife.
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| Veneer, sawed |
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Produced by sawing.
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| Veneer, sliced |
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Sliced off a log, bolt or flitch with a knife.
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| Vent |
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To permit opening of a pressure control valve by opening its pilot port (vent connection) to atmospheric pressure.
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| Venting |
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The act of discharging hot, moisture-laden air from a dry kiln.
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| Vents |
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The opening in a dry kiln roof or wall that can be opened and closed to control the wetbulb temperature in a kiln.
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| Vertical grain (VG) |
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Lumber that is sawn at approximately right angles to the annual growth rings so that the rings form an angle of 45 degrees or more with the surface of the piece.
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| Vertically laminated timbers |
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Laminated timbers designed to resist bending loads applied parallel to the wide faces of the laminations.
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| Viscosity |
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A measure of the internal friction or the resistance of a fluid to flow.
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| Viscosity index |
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A measure of the viscosity-temperature characteristics of a fluid as referred to that of two arbitrary reference fluids.
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