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phases    音标拼音: [f'ezəz] [f'ezɪz]
n. 时期,局面,阶段
v. 逐步实行

时期,局面,阶段逐步实行

Phase \Phase\ (f[=a]z), n.; pl. {Phases} (f[=a]z"[e^]z). [NL.
phasis, Gr. fa`sis, fr. fai`nein to make to appear: cf. F.
phase. See {Phenomenon}, {Phantom}, and {Emphasis}.]
1. That which is exhibited to the eye; the appearance which
anything manifests, especially any one among different and
varying appearances of the same object.
[1913 Webster]

2. Any appearance or aspect of an object of mental
apprehension or view; as, the problem has many phases.
[1913 Webster]

3. (Astron.) A particular appearance or state in a regularly
recurring cycle of changes with respect to quantity of
illumination or form of enlightened disk; as, the phases
of the moon or planets. See Illust. under {Moon}.
[1913 Webster]

4. (Physics) Any one point or portion in a recurring series
of changes, as in the changes of motion of one of the
particles constituting a wave or vibration; one portion of
a series of such changes, in distinction from a contrasted
portion, as the portion on one side of a position of
equilibrium, in contrast with that on the opposite side.
[1913 Webster]

5. (Phys. Chem.) A homogenous, physically distinct portion of
matter in a system not homogeneous; as, the three phases,
ice, water, and aqueous vapor; in a mixture of gasoline
and water, the gasoline will settle as the upper phase. A
phase may be either a single chemical substance or a
mixture, as of gases.
[Webster 1913 Suppl.]

6. (Zool.) In certain birds and mammals, one of two or more
color variations characteristic of the species, but
independent of the ordinary seasonal and sexual
differences, and often also of age. Some of the herons
which appear in white and colored phases, and certain
squirrels which are sometimes uniformly blackish instead
of the usual coloration, furnish examples. Color phases
occur also in other animals, notably in butterflies.
[Webster 1913 Suppl.]

7. (Physics) the relation at any instant of any cyclically
varying physical quantity, such as voltage in an A.C.
circuit, an electromagnetic wave, a sound wave, or a
rotating object, to its initial value as expressed as a
fractional part of the complete cycle. It is usually
expressed in angular measure, the complete cycle being
360[deg]. Such periodic variations are generally well
represented by sine curves; and phase relations are shown
by the relative positions of the crests and hollows of
such curves. Magnitudes which have the same phase are said
to be in phase.

Note: The concept of phase is also applied generally to any
periodically varying phenomenon, as the cycle of
daylight. One person who sleeps during the day and
another who sleeps at night may be said to be out of
phase with each other.
[PJC]

8. Specifically: (Elec.) The relation at any instant of a
periodically varying electric magnitude, as electro-motive
force, a current, etc., to its initial value as expressed
in factorial parts of the complete cycle. It is usually
expressed in angular measure, the cycle being four right
angles, or 360[deg].
[Webster 1913 Suppl.]


Phasis \Pha"sis\, n.; pl. {Phases}. [NL.]
See {Phase}. --Creech.
[1913 Webster] Phasm


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  • PHASE Definition Meaning - Merriam-Webster
    Phase and faze are homophones (words pronounced alike but different in meaning, derivation, or spelling) that may easily be confused Despite the similarity in pronunciation, these words bear little semantic resemblance to one another
  • Todays Moon Phase | Current moon cycle for today and tonight
    Between these major phases, there are 4 minor ones: the Waxing Crescent, Waxing Gibbous, Waning Gibbous and Waning Crescent For more info on the Moon Cycle and on each phase check out Wikipedia Lunar Phase page
  • Phase - Wikipedia
    Look up Phase, phase, or phases in Wiktionary, the free dictionary
  • What Is a Phase? Definition, Types, and Examples
    The moon cycles through eight named phases every 29 5 days, determined by the angle between the Sun, Earth, and Moon These phases describe how much of the moon’s sunlit side is visible from Earth at any given point in its orbit
  • PHASE | English meaning - Cambridge Dictionary
    When I was in my early teens I went through a phase of only ever wearing black The phases of the moon are the regular changes in its shape as it appears to us on earth
  • PHASE definition and meaning | Collins English Dictionary
    A phase is a particular stage in a process or in the gradual development of something The crisis is entering a crucial, critical phase If an action or change is phased over a period of time, it is done in stages He wants military commanders to plan a phased withdrawal starting at the end of the year [VERB-ed] 3
  • Phase - Definition, Meaning Synonyms | Vocabulary. com
    A phase is a particular period of time, like someone whose "teenage rebellion" phase lasts well into her thirties The word phase can mean a stage in a person’s development or a step in a process, such as “the next phase in the Interstate 57 project ”
  • Phases - definition of phases by The Free Dictionary
    1 any distinct or characteristic period or stage in a sequence of events or chain of development: there were two phases to the resolution; his immaturity was a passing phase
  • phase - Wiktionary, the free dictionary
    phase (third-person singular simple present phases, present participle phasing, simple past and past participle phased) (with in or out) To begin—if construed with "in"—or to discontinue—if construed with out— (doing) something over a period of time (i e in phases)
  • Phases - Chemistry LibreTexts
    Gas, liquid, and solid are known as the three states of matter or material, but each of solid and liquid states may exist in one or more forms Thus, another term is required to describe the various forms, and the term phase is used





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