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เลขกำลังในพิชคณิต เป็นเลขจำนวนน้อยหรือเป็นสัญญลักษณ เช่น 4 -a - a -a
(Software Engineering) a technique that translates the needs of a customer in technical requirements for software by assessing the value of each requirement
(english) The displacement and / or detachment of metallic particles from a surface as a consequence of being exposed to flowing fluids or gases.
(Concrete Engineering) A fragment, usually of flaky shape, detached from a larger mass by pressure, expansion from within the larger mass, a blow, or by the action of weather.
(english) A change in the shape of an object or material.
(Software Engineering) a measure of the utility delivered by an application
(Software Engineering) a set of activities that attempt to find errors
(Software Engineering) a set of techniques for deriving effective test cases
(english) Similar to the concept of center of gravity, except that it applies to a two dimensional shape rather than an object. For a given shape, the centroid location corresponds to the center of gravity for a thin flat plate of that shape, made from a homogeneous material.
(english) Agitation of a bath of metal caused by the liberation of a gas beneath its surface. May be deliberately induced by the addition of oxidizing material to a bath containing excess carbon. In the later case it is called a carbon boil and CO or CO2 are liberated.
(english) The value of hardness of a metal on an arbitrary scale representing kg/mm2, determined by measuring the diameter of the impression made by a ball of given diameter applied under a known load. Values are expressed in Brinell Hardness Numbers, BHN
(english) A coating defect consisting of the whitening of a cured film which results in a translucent or opaque appearance with accompanying loss of gloss. Blushing usually occurs during the pasteurization or steam processing of films which are undercured or water sensitive.