不可壓縮條件; 不可壓縮性
Incompressibility \In`com*press`i*bil"i*ty\, n. [Cf. F. incompressibilit['e].] The quality of being incompressible, or incapable of reduction in volume by pressure; -- formerly supposed to be a property of liquids. The incompressibility of water is not absolute. --Rees.
incompressibility n : the property of being incompressible [ant: {compressibility}]