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ค้นเจอ 380 รายการ

Shock load

(Environmental Engineering) Influent wastewater entering the plant which has an unusually high organic content and/or high flow rate.

Dump

(Environmental Engineering) An illegal and uncontrolled area where wastes have been placed on or in the ground. See Landfill.

Binary Alloy

(english) An alloy containing two elements, apart from minor impurities, as brass containing the two elements copper and zinc.

Bright Dipping

(english) Chemical polishing of aluminum, often by treatment with a mixture of nitric acid and phosphoric acid, yielding a mirror-shiny (specular) highly reflective surface. It is almost always followed by anodizing to protect the surface and provide some choice of color.

Chlorofluorocarbons

(Environmental Engineering) Synthetic organic compounds used for refrigerants, aerosol propellants (prohibited in the U.S.), and blowing agents in plastic foams. CFCs migrate to the upper atmosphere destroying ozone and increasing global warming. Typical atmospheric residence times are 50 to 200 years.

Statically determinate:

(english) A statically determinate structure is one where there is only one distribution of internal forces and reactions which satisfies equilibrium. In a statically determinate structure, internal forces and reactions can be determined by considering nothing more than equations of equilibrium.

Billet

(english) (1) A semi-finished section hot rolled from a metal ingot, with a rectangular cross section usually ranging from 16 to 36 in., the width being less than twice the thickness. Where the cross section exceeds 36 in., the term “bloom” is properly but not universally used. Sizes smaller than 16 in. are usually termed “bars”; a solid semi-finished round or square product which has been hot worked by forging, rolling, or extrusion. (2) A semi-finished, cogged, hot rolled or continuous-cast metal product of uniform section, usually rectangular with radiused corners. Billets are relatively larger than bars.

Time-boxing

(Software Engineering) a project scheduling and control technique that establishes time boundaries for the completion of a specific project task

BREATHER

(english) A device which permits air to move in and out of a container or component to maintain atmospheric pressure.

Customer

(Software Engineering) the person or group that has requested the software and will be paying the bill for its development

Acme Thread

(english) A screw thread having a 29 degree included angel. Used largely for feed and adjusting screws on machine tools.

Configuration

(Software Engineering) the collection of programs, documents and data that must be controlled when changes are to be madeConfiguration audit

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