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Ice piled haphazardly one piece over another in the form of ridges or walls; usually found in firstyear ice.

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The lowest temperature at which a liquid gives off sufficient vapor to form a flammable mixture with air near the surface of the liquid. The flashpoint temperature is determined by laboratory testing in a prescribed apparatus.

Establishes the danger point when transferring, pumping, and firing procedures are concerned.


A filter cartridge made into a convoluted form that resembles the folds of an accordion.


A torch in which temperatures as high as 50,000 C are achieved by injecting a plasma gas tangentially into an electric arc formed between electrodes in a chamber; the resulting vortex of hot gases emerges at very high speed through a hole in the negative electrode, to form a jet for welding, spraying of molten metal, and cutting of hard rock or hard metals.


A hollow, cylindrical insert placed in a form for a concrete wall at the position where a pipe is to penetrate in order to prevent flow of concrete into the opening.


1. An interior wall having a height of one story or less, which divides a structure into sections. 2. A slotted sheet of paperboard that can be assembled with similar sheets to form cells for holding goods during shipment.


Circuit in which two or more parts are connected together in parallel to form parallel circuits, and in which these circuits are then connected together in series so that both methods of connection appear.


1. Two like conductors employed to form an electric circuit. 2. Two parts in a kinematic mechanism that mutually constrain relative motion; for example, a sliding pair composed of a piston and cylinder.


Solids sizereducer in which particles are broken by a set of oscillating bars arranged in cylindrical form over a screen of suitable mesh.


[SYS ENG] The study, capture, and modification of the internal mechanisms or functionality of existing system management processes and practices in an organization in order to reconstitute them in a new form and with new features, often to take advantage of newly emerged organizational competitiveness requirements, but without changing the inherent purpose of the organization itself. Also known as systems management reengineering.


A form that lists all the essential factors influencing the effectiveness of an operation.

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