دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: to move with a slight, irregular rhythm. Breathing occurs in tanks of vessels when vapours are expelled and air is taken in. For example, a tank of crude oil expands because of the rise in temperature during the day and contracts as it cools at night, expelling vapours as it expands and taking in air as it contracts. Tubing breathes when it moves up and down in sequence with a sucker rod pump.

n: a small vent in an otherwise airtight enclosure for maintaining equality of pressure inside and outside.

n: a colourless, odourless gaseous compound of carbon and oxygen, CO. A product of incomplete combustion, it is extremely poisonous to breathe.

n: the part of the opencircuit diving system that allows a diver to expel all used air directly into the water and avoid rebreathing exhaled carbon dioxide. The regulator reduces the air pressure in the tanks to a divers ambient pressure so that he or she can breathe the air with no resistance. Also called open-circuit regulator.

n: a process used by divers to eliminate inert gases from the tissues, whereby they breathe high partial pressures of oxygen while resting after a dive to reduce the risk of getting decompression sickness.