单词 | cavitation |
释义 | cavitation [´kav·ǝ`tā·shǝn] CHEMISTRY Emulsification produced by disruption of a liquid into a liquid-gas two-phase system, when the hydrodynamic pressure of the liquid is reduced to the vapor pressure. ENGINEERING Pitting of a solid surface such as metal or concrete. FLUID MECHANICS Formation of gas- or vapor-filled cavities within liquids by mechanical forces; broadly includes bubble formation when water is brought to a boil and effervescence of carbonated drinks; specifically, the formation of vapor-filled cavities in the interior or on the solid boundaries of vaporized liquids in motion where the pressure is reduced to a critical value without a change in ambient temperature. PATHOLOGY The formation of one or more cavities in an organ or tissue, especially as the result of disease. |
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