to keep up pressure
21Reduced pressure backflow prevention assembly — A reduced pressure (RP) backflow prevention device is a device used to protect the potable water supply from contaminated water. An RP valve consists of an automatic pressure relief valve in between two check valves. The pressure relief valve… …
22Turgor pressure — or turgidity is the main pressure of the cell contents against the cell wall in plant cells and bacteria cells, determined by the water content of the vacuole, resulting from osmotic pressure, i.e. the hydrostatic pressure produced by a solution… …
23continuous positive airway pressure — n a technique of assisting breathing by maintaining the air pressure in the lungs and air passages constant and above atmospheric pressure throughout the breathing cycle abbr. CPAP compare POSITIVE END EXPIRATORY PRESSURE * * * (CPAP) a method of …
24to keep in touch — Touch Touch, n. [Cf. F. touche. See {Touch}, v. ] 1. The act of touching, or the state of being touched; contact. [1913 Webster] Their touch affrights me as a serpent s sting. Shak. [1913 Webster] 2. (Physiol.) The sense by which pressure or… …
25To keep touch — Touch Touch, n. [Cf. F. touche. See {Touch}, v. ] 1. The act of touching, or the state of being touched; contact. [1913 Webster] Their touch affrights me as a serpent s sting. Shak. [1913 Webster] 2. (Physiol.) The sense by which pressure or… …
26low-side pressure control — Device used to keep low side evaporating pressure from dropping below certain pressure …
27Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… …
28turbine — /terr bin, buyn/, n. any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as …
29Diving regulator — and Octopus Other names Demand valve Uses Reduces pressurized breathing gas to ambient pressure and delivers it to the diver Inventor Manuel Théodore Guillaumet (1838), Benoît Rouquayrol (1860) …
30Turbocharger — A turbocharger, or turbo, is an air compressor used for forced induction of an internal combustion engine. Like a supercharger, the purpose of a turbocharger is to increase the mass of air entering the engine to create more power. However, a… …
