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(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) An operation which produces various degree bends when fabricating parts from steel.
(english) A definition applying to material which has been permanently damaged by over-heating.
(Environmental Engineering) A fossilized organic material present in oil shale and some other sedimentary rocks.
(Environmental Engineering) A bond in which electrons are shared approximately equally by two atoms.
(Environmental Engineering) A unit of varying dimensions in a landfill which is isolated from the environment by 6 to 12 inches of soil cover. A cell is one day's waste or less. A cell is covered with soil at the end of each day.
(english) Process that rids boiler feed water of solids and maintains the proper chemical balance of the feed water. Blow down can also be used to rid drum(s) of excess water.
(english) Appeaars like a series of waves and are created during rolling as a result of mechanical misalignment or cross-section irregularities in supply coil.
(english) Brittleness resulting from pickling steel in acid; hydrogen, formed by the interaction between iron and acid, is partially absorbed by the metal, causing acid brittleness.
(english) A change in position. A displacement may be a translation a rotation or a combination of those.
(english) A change in the shape of an object or material.
(Environmental Engineering) Organisms which utilize inorganic carbon for synthesis of protoplasm. Ecologists narrow the definition further by requiring that autotrophs obtain their energy from the sun. In microbiologist parlance, this would be a photoautotroph. See photoautotrophic and chemoautotrophic.