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ค้นเจอ 333 รายการ

Mixed liquor suspended solids (MLSS)

(Environmental Engineering) The total suspended solids concentration in the activated sludge tank.

Total dissolved solids

(Environmental Engineering) (TDS) is the amount of dissolved matter in the water.

Blue Annealing

(english) Heating hot rolled ferrous sheet in an open furnace to a temperature within the transformation range and then cooling in air, in order to soften the metal. The formation of a bluish oxide on the surface is incidental.

Classes - a basic construct in object

(Software Engineering) oriented methods that categorizes elements of the problem

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.

Boron (chemical symbol B)

(english) Element N. 5 of the periodic system. Atomic weight 10.82. It is gray in color, ignites at about 1112 (degrees) F. and burns with a brilliant green flame, but its melting point in a non-oxidizing atmosphere is about 4000 (degrees) F. Boron is used in steel in minute quantities for one purpose only- to increase the hardenability as in case hardening and to increase strength and hardness penetration.

Defect amplification

(Software Engineering) when a defect is introduced early in the software process and remains undetected, it often is amplified into multiple defects later in the software process

Capillarity

(Concrete Engineering) A wick-like action whereby a liquid will migrate vertically through material, in a upward direction; as oil in a lamp travels upward through the wick,

Blind Bole

(english) A hole made in a workpiece that does not pass through it.

Roller support:

(english) In two dimensions, a roller support restrains one translation degree of freedom.

Reusability

(Software Engineering) the ability to reuse an already-existing program component in another application

Anaerobic process

(Environmental Engineering) A process which only occurs in the absence of molecular oxygen.

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