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    1. 首頁英語詞典phasephase英英釋意

      phase

      英 [fe?z] 美[fez]
      • n. 相;階段;[天] 位相
      • vt. 使定相;逐步執(zhí)行
      • vi. 逐步前進(jìn)

      英英釋意


      1. (physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary;
      "the reaction occurs in the liquid phase of the system"
      2. any distinct time period in a sequence of events;
      "we are in a transitional stage in which many former ideas must be revised or rejected"
      3. a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle
      4. (astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun);
      "the full phase of the moon"