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单词 fluidity
释义

fluidity


flu·id

F0203600 (flo͞o′ĭd)n. A continuous, amorphous substance whose molecules move freely past one another and that has the tendency to assume the shape of its container; a liquid or gas.adj.1. Of, relating to, or characteristic of a fluid.2. Readily reshaped; pliable.3. Smooth and flowing; graceful: the fluid motion of a cat.4. a. Changing or tending to change; variable: a fluid situation fraught with uncertainty.b. Characterized by or allowing social mobility: a fluid society.5. Convertible into cash: fluid assets.
[From Middle English, flowing, from Old French fluide, from Latin fluidus, from fluere, to flow; see bhleu- in Indo-European roots.]
flu·id′i·ty (-ĭd′ĭ-tē), flu′id·ness n.flu′id·ly adv.

fluidity

(fluːˈɪdɪtɪ) n1. (General Physics) the state of being fluid2. (General Physics) physics the reciprocal of viscosity

flu•id•i•ty

(fluˈɪd ɪ ti)

n. 1. the quality or state of being fluid. 2. the ability of a substance to flow. [1595–1605]
Thesaurus
Noun1.fluidity - the property of flowing easily; "adding lead makes the alloy easier to cast because the melting point is reduced and the fluidity is increased"; "they believe that fluidity increases as the water gets warmer"fluidness, runniness, liquidity, liquidnessthinness - a consistency of low viscosity; "he disliked the thinness of the soup"
2.fluidity - a changeable quality; "a charming Oriental fluidity of manner"; "a certain fluidness in his perception of time made him an unpredictable colleague"; "demographers try to predict social fluidity"fluidnesschangeability, changeableness - the quality of being changeable; having a marked tendency to change; "the changeableness of the weather"

fluidity

nounReady skill in expression:facility, fluency.
Translations
流动性

fluid

(ˈfluid) noun1. a substance (liquid or gas) whose particles can move about freely. 流體 流体2. any liquid substance. cleaning fluid. 液體 液体 adjective1. able to flow like a liquid. a fluid substance. 流體的 流体的2. smooth and graceful. fluid movements. 流暢的 流畅的3. (of arrangements, plans etc) able to be changed easily. My holiday plans are fluid. 易變的 易变的fluˈidity noun 流動性 流动性
IdiomsSeefluid

Fluidity


fluidity

[flü′id·əd·ē] (fluid mechanics) The reciprocal of viscosity; expresses the ability of a substance to flow.

Fluidity

 

the property whereby stressed bodies undergo plastic deformation or viscous flow. Fluidity is characterized by a value that is the reciprocal of viscosity. In viscous bodies (gases, liquids) fluidity is manifested at all stress levels. In plastic solid bodies, however, it occurs only at high stress levels that exceed the yield point.

Different bodies exhibit different fluidity mechanisms, which determine the resistance of the bodies to plastic or viscous flow. In gases, the mechanism governing fluidity is associated with the transfer of momentum from those layers where the gas molecules move predominantly in the direction of flow to layers where this motion is weaker. In liquids, the fluidity mechanism manifests itself in a diffusion that is predominantly in the direction of the stress effects. On a molecular level, the diffusion is explained by the spasmodic displacement of molecules, pairs of molecules, or segments of macromolecular chains (in substances of high molecular weight) accompanied by transition across an energy barrier. In crystalline solids, fluidity is associated with the motion of various kinds of crystal defects, including point defects (vacancies), line defects (dislocations), and volume defects (crowding). Flow can also arise from stress-induced twinning. The flow proceeding slowly over a long period of time in metals at high temperatures and in polymers and other materials is known as creep.

Fluidity phenomena occur both on earth and in outer space. On earth, fluidity manifests itself in the movement of continents, the motion in the atmosphere and hydrosphere, and the tectonic movements of mountain masses. In engineering, fluidity phenomena are encountered in the flow of gases and liquids through pipes and in various types of production equipment. Plastic flow and creep must be allowed for in construction, especially when structural members are subjected to great loads.

REFERENCES

Hirth, J., and J. Lothe. Teoriia dislokatsii. Moscow, 1972. (Translated from English.)
Severs, E. T. Reologiia polimerov. Moscow, 1966. (Translated from English.)
Frenkel’, la. I. Sobranie izbrannykh trudov, vol. 3. Moscow-Leningrad, 1959.
Golubev, I. F. Viazkost’gazov igazovykh smesei. Moscow, 1959.

N. I. MALININ

fluidity

The quality of being fluid, or capable of flowing; that quality of a body which renders it incapable of resisting tangential stresses.

fluidity


flu·id·i·ty

(flū-id'i-tē), The reciprocal of viscosity; unit: rhe = poise-1.

fluidity


  • noun

Synonyms for fluidity

noun ready skill in expression

Synonyms

  • facility
  • fluency

Synonyms for fluidity

noun the property of flowing easily

Synonyms

  • fluidness
  • runniness
  • liquidity
  • liquidness

Related Words

  • thinness

noun a changeable quality

Synonyms

  • fluidness

Related Words

  • changeability
  • changeableness
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