การปฏิบัติ, การกระทำ, การดำเนินงาน
การปฏิบัติ, วิธีปฏิบัติ, ปฏิบัติ, กระทำกิจ
(software engineering) a bounded statement of what must be accomplished
(software engineering) a set of software engineering activities that attempt to improve the state of software engineering practice within an organization
(software engineering) a modeling activity whose objective is to understand what the customer really wants
(software engineering) an activity that help software developer to understand what changes have been made and why
(english) the full name for z-mill is sendzimir mill. a z-mill operates with a very small diameter work roll, normally about 2 inches, backed up by a number of rolls in a pyramid-shaped stack. this roll set up allows you to exert extremely high forces through the work roll and yet keep the work roll from extreme flexing. the take-up roll on the z-mill also exerts a tension on the coil as it comes through the mill. the combination of high pressure and tension makes the mill capable of rolling material thin and flat.
(english) various tests which is used to ascertain the toughness and ductility of a metal product, in which the material is bent around its axis and/ or around an outside radius. a complete test might specify such a bend to be both with and against the direction of grain. for testing, samples should be edge filed to remove burrs and any edgewise cracks resulting from slitting or shearing. if a vice is to be employed, then you must line the jaws with some soft metal, to permit a flow of the metal in the piece being tested.
(english) "what a pear-shaped furnace, lined with refractory bricks, that refines molten iron from the blast furnace and scrap into steel. up to 30% of the charge into the bof can be scrap, with hot metal accounting for the rest. why bofs, which can refine a heat (batch) of steel in less than 45 minutes, replaced open-hearth furnaces in the 1950s; the latter required five to six hours to process the metal. the bof's rapid operation, lower cost and ease of control give it a distinct advantage over previous methods. how scrap is dumped into the furnace vessel, followed by the hot metal from the blast furnace. a lance is lowered from above, through which blows a high-pressure stream of oxygen to cause chemical reactions that separate impurities as fumes or slag. once refined, the liquid steel and slag are poured into separate containers. "