incompressibility
  不可壓縮條件; 不可壓縮性
  In·com·press·i·bil·i·ty n.  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.
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  incompressibility
       n : the property of being incompressible [ant: compressibility]