دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a substance that is an insulator, or nonconductor, of electricity.

a material that does not conduct electricity or has only a low electrical conductivity compared to a metal.

n: the value of dielectricity assigned to a substance. A substance that is a good insulator has a high dielectric constant, whereas a poor insulator has a low one. The dielectric constant of oil is lower than that of water, and on this principle a net-oil computer operates. die nipple n: a device similar to a die collar but with external threads.

n: a material with a very low concentration of free electrons that resists the flow of electric current.

n: a solid (such as gennanium or silicon) whose electrical conductivity lies between that of a conductor and that of an insulator. Semiconductor materials are used in the manufacture of diode rectifiers, transistors, and integrated circuits.