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(English) The top level of the boiler firebox where four oil guns are located. The oil guns are used to produce steam and maintain pressure while the boiler is on oil fire.
(english) A cavity which was produced during the solidification of metal by evolved gas, which in failing to escape is held in pockets.
(english) Strain measuring the intensity of deformation along an axis. Normal strain is usually denoted by . Average normal strain between two points is calculated as (Delta L / L), where L is the original distance between the points, and L is the change in that distance. Normal strain is often simply called strain.
(Environmental Engineering) The process of returning residuals back to the environment in a form which will have the minimal or reduced negative environmental impacts.
(english) The indicated value of the weight of the earth's atmosphere. At sea level, this value is approximately 14.65 psi (pounds per square inch).
(english) A loose steel frame placed inside a removable flask to reinforce the sand at the parting line after the flask has been removed.
(english) The flaring or tapering of a machined hole, usually made at the entrance end because of misalignment or spring of the cutting tool.
(english) The energy of a moving mass; equal to (mv^2)2. Where m is mass and v is the magnitude of the velocity.
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(english) The displacement and/or detachment of metallic particles from a surface as a consequence of being exposed to flowing solids, fluids or gases. The process of rubbing, grinding, or wearing away by friction.
(english) A preliminary forging operation to give the piece approximately the correct shape for subsequent forming.
(Environmental Engineering) The synthesis of the energy storage compound adenosine triphosphate (ATP) from adenosine diphosphate (ADP).