دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a portion of a physical system that is liquid, gas, or solid, that is homogeneous throughout, that has definite boundaries, and that can be separated from other phases. The three phases of H2O, for example, are ice (solid),water (liquid),and steam (gas). 2. in physics, the stage or point in a cycle to which a rotation, oscillation, or variation has advanced.

a homogeneous body of material that differs in properties from other phases (immiscible) – e.g., gas, liquid, solid.