constant

B2 CET-4 Oxf 3000 高中 FREQ #4186 ★★★★☆

n. 常数, 恒量 a. 不变的, 一定的, 时常的 [计] 常量; 常数; 恒值

发音

UK /ˈkɒnstənt/
US /ˈkɑnstənt/

词形变化

constants 复数 constants more constant 比较级 most constant 最高级

别名

cons. const. constaunt

教材释义与例句

名词

[数] 常数；恒量

a number or quantity that never changes

名词

常数；恒量

形容词

不变的；恒定的；经常的

happening regularly or all the time

释义与例句

n.
  1. 1.

    That which is permanent or invariable.

    常数

  2. 2.

    A quantity that remains at a fixed value throughout a given discussion or operation.

    常量

    常数

    数学
  3. 3.

    Any property of an experiment, determined numerically, that does not change under given circumstances.

  4. 4.

    An identifier that is bound to an invariant value; a fixed value given a name to aid in readability of source code.

    计算机 工程 数学
adj. B2 Oxf 3000
  1. 1.

    Unchanged through time or space; permanent.

  2. 2.

    Consistently recurring over time; persistent.

    持久的

  3. 3.

    Steady in purpose, action, feeling, etc.

  4. 4.

    Firm; solid; not fluid.

  5. 5.

    Consistent; logical.

    废旧
  6. 6.

    Bounded above by a constant.

    计算机 工程 数学

    constant time constant space

词汇关系

名词

同义词 1

invariable

上位词 2

number quantity

下位词 10

c g parameter coefficient cosmological constant equilibrium constant gas constant gravitational constant lightspeed R
形容词

同义词 9

perpetual never-ending incessant ceaseless changeless invariant unceasing unremitting unvarying

反义词 1

inconstant

近义相关 9

continuous steadfast uninterrupted staunch immutable unfailing invariable unflagging unswerving

参见 4

stable faithful invariable unchangeable

相关短语

constant speed drive constant function constant of integration Constant Spring constant functions constant speed drives constant problem constant morphism constant morphisms constant time constant times constant velocity constant speedism constant-velocity joint

词源

From Middle English constant, from Old French constant, from Latin constantem, accusative of constans, from cōnstāre (“to stand firm”). Displaced native Old English singal.

来源：wiktionary