دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a measuring instrument intended to define, to represent physically. or to reproduce the unit of measurement of a quantity (or a multiple or submultiple of that unit) to transmit it to other measuring instruments by comparison. See also primary standard, secondary standard, working standard. 2. a prescribed set of voluntary rules. conditions. or requirements concerned with the definition of terms;classification of component;delineation of procedures;specification of dimension;construction criteria;materials;performance;design;or operations;measurement of quality and quantity in describing materials, products, systems, services, or practices;or description of fit and measurement of size.