دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a derrick or crane shaped like the letter A and used to handle heavy loads. 2. an A-shaped openwork structure that is the stationary and supporting component of the mast of a jackknife rig and to which the mast is anchored when it is in an upright or drilling position. 3. the uppermost section of a standard derrick, shaped like the letter A and used as a support in lifting objects such as the crown block to the water table.

n: A kind of "A" frame gin pole, used to elevate heavy object.

n: 1. the process of sucking up, taking in and making part of an existing whole. Compare adsorption. 2. the process in which short wave radiation is retained by regions of the earth.

n: The penetration or apparent disappearance of molecules or ions of one or more substances into the interior of a solid or liquid.

n: see hydrogen embrinlement.

n: Metal becomes brittle rupture because of absorbing hydrogen.

low ductility of a metal due to its adsorption of hydrogen. More commonly called hydrogen embrittlement.

a highly porous solid, usually a charcoal. Used for adsorption of unwanted materials.

n: a form of carbon characterised by a high absorptive and adsorptive capacity for gases, vapours, aIM1 colloidal solids.

a piece of equipment that connects pipe, flanges or other equipment with different root threads or connection mechanisms.

n: a force of attraction that causes molecules of one substance to cling to those of a different substance.

n: The force which holds together unlike molecules.

attractive forces between unlike molecules or compounds. Example – the attractive forces between water molecules and the walls of a clean glass tube are stronger than the cohesive forces;this leads to an upward turned contact or meniscus at the wall.

abbr: atmospheric diving system.

n: The phenomenon that substances automatically converge in the two-phase interface(The interfacial concentration is bigger than
the interior concentration).

n: A thin film that is formed in the surface of the substance after adsorbent adsorbs a substance.