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at this time* *at this time *at this time*

ค้นเจอ 150 รายการ

OCL (Object Constraint Language)

(Software Engineering) a supplement to UML, this formal language allows a software engineer to construct unambiguous statements about the characteristics of various design model elements

Band, Inside

(english) A loose steel frame placed inside a removable flask to reinforce the sand at the parting line after the flask has been removed.

Bell Mouth

(english) The flaring or tapering of a machined hole, usually made at the entrance end because of misalignment or spring of the cutting tool.

Reaction:

(english) A reaction is a force exerted by a support on an object: sometimes called support reaction. Using this definition, a reaction is an external force.

Reversible reaction

(Environmental Engineering) A reaction in which the reactant(s) proceed to product(s), but the products react at an appreciable rate to reform reactant(s).

Irreversible reaction

(Environmental Engineering) A reaction in which the reactant(s) proceed to product(s), but the products react at an appreciable rate to reform reactant(s).

ACCUMULATOR

(english) A vessel, normally cylindrical, which is used to store fluid and gas for future release of the energy in the compressed fluid and gas. Normally contains a diaphragm or piston between the fluid (liquid) and gas chambers. Fluid is normally introduced at one end and the gas at the opposite end.

Aromatic

(Environmental Engineering) A form of bonding in which ring compounds share electrons over more than two atoms. The electrons are delocalized. This leads to unusual ring stability.

Aging 2

(english) A change in properties that occurs at ambient or moderately elevated temperatures after hot working or a heat treating operation (quench aging in ferrous alloys), or after a cold working operation (strain aging). The change in properties is often, but not always, due to a phase change (precipitation), but does not involve a change in chemical composition. In a metal or alloy, a change in properties that generally occurs slowly at room temperature and more rapidly at higher temperatures.

Baller Stick

(english) Octagon-shaped wooden stick approximately 5' long. This stick is used in the baller area, to change burr mashers, to start a coil with a large ID, etc.

Baseline

(Software Engineering) a point at which some deliverable produced during the software engineering process is put under formal change contro เส้นอ้างอิง ใช้สำหรับการวางผัง หรือการสำรวจ

Bainite

(english) A eutectoid transformation product of ferrite and a fine dispersion of carbide, generally formed at temperatures below 840 to 930 F (450 to 500 C): upper bainite is an aggregate containing parallel lath-shape units of ferrite, produces the so-called feathery appearance in optical microscopy, and is formed at temperatures above about 660 F (350 C); lower bainite consists of individual plate-shape units and is formed at temperatures below about 660 F (350 C). Also, a slender, needle-like (acicular) microstructure appearing in spring steel strip characterized by toughness and greater ductility than tempered Martensite. Bainite is a decomposition product of Austenite best developed at interrupted holding temperatures below those forming fine pearlite and above those giving Martensite.

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