دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a brand name for one type of pipe tongs used on drilling rigs;sometimes used generically for all brands of tongs, even though other types of tongs exist.

n: the metric unit of magnetic flux.

n: 1. a metal or wooden piece that tapers to a thin edge and is used for raising heavy objects or for tightening by being driven into or between something. 2. something wedge-shaped, as a portion of liquid in the hold of a tanker ship.

n: a formula for a trigonometric calculation to determine the oil remaining on board (ROB) when the vessel is out of trim and the ROB does not contact both forward and aft bulkheads. The formula assumes ROB to be a flowable liquid.

n: a mathematical means of approximating the small quantities of liquid and solid cargo and free water on board before a vessel is loaded and after its cargo is discharged, based on cargo compartment dimensions and vessel trim. It is used only when a wedge exists and when the liquid does not touch all bulkheads.

n: wire rope fittings wherein the rope end is secured by a wedge.

n pi: pre-calculated ships tables based on the wedge formula and displayed in much the same way as the ships innage/ullage tables. Used for small quantities when the liquid does not touch all bulkheads.