constant
英 [ˈkɒnstənt] 美 [ˈkɑnstənt]

adj.

不断的，持续的；永恒的，始终如一的；坚定；忠实的

n.

[数]常数，常量；不变的事物；永恒值；

变形

复数：constants

双语释义

adj.(形容词)

1. 始终如一的,恒久不变的 fixed or unchanging
2. 不断的,连续发生的 continually happening or repeated; regular
3. 忠实的,忠诚的 loyal; faithful

英英释义

constant[ 'kɔnstənt ]

• n.
  • a quantity that does not vary

    同义词：constant quantityinvariable

  • a number representing a quantity assumed to have a fixed value in a specified mathematical context

    "the velocity of light is a constant"

• adj.
  • persistent in occurrence and unvarying in nature

    "maintained a constant temperature"

    同义词：changelessinvariantunvarying

  • continually recurring or continuing without interruption

    "constant repetition of the exercise"; "constant chatter of monkeys"

    同义词：continuant

  • steadfast in purpose or devotion or affection

    "a man constant in adherence to his ideals"; "a constant lover"; "constant as the northern star"

  • uninterrupted in time and indefinitely long continuing

    "in constant pain"

    同义词：ceaselessincessantnever-endingperpetualunceasingunremitting

词汇搭配

用作形容词 (adj.)～+名词

• constant friend忠实的朋友
• constant nagging不停地唠叨
• constant temperature恒温

～+介词

• be constant in〔to〕 friendship对友谊忠贞

词组短语

constant temperature恒温；定温；等温

constant pressure恒压

dielectric constant介电常数；电容率

constant current恒定电流

constant speed恒速；等速

time constant时间常数，时间常量

rate constant速率常数；速度常数

constant voltage恒定电压；定压

constant volume定容；恒定体积

constant flow恒流；定量流动；常廉流稳恒流；恒流定量消耗

equilibrium constant平衡常数

constant velocity匀速；等速度；恒速度

constant temperature and humidity恒温恒湿

constant value不变价值

constant frequency恒定频率；固定频率

constant current source恒流源

constant state恒定常态

constant rate恒速；固定比率；恒定流量

constant practice时习，不断的练习

constant load恒定负载

更多收起词组短语

同近义词辨析

continuous, constant, continual, incessant

这组词都有“不断的，不停的”的意思，其区别是：

continuousa.不停的，连续不断的，强调中间不停顿。

Our homes and offices need a continuous supply of electricity.我们的家庭以及办公室需要不间断的供电。

constanta.不断的，经常的，强调始终如一地经常出现。

Everything in the universe is in constant motion.宇宙中的万物都在不断地运动。

continuala.连续不断的；频繁的。表示时断时续的发生。

That dog's barking is a continual annoyance.那条狗不停地叫，真是烦死人了。

incessanta.不停的，持续不断的，强调令人厌烦地重复出现，中间有可能有停顿。

Incessant noise makes me appreciate silence.持续不断的噪声骚扰使我喜欢安静的环境。

loyal, constant, faithful, true

这组词都有“忠实的”的意思，其区别是：

loyal一般指对祖国、领袖的忠诚或对事业、原则、誓言的忠实，不动摇。

constant侧重指思想状态的稳定或信念的坚定，也指爱情或感情等的忠贞不渝。

faithful多指对人对事或对诺言、誓言的始终不渝，侧重在任何情况下都绝不改变。

true侧重个人感情上的忠实和不动摇。

continuous, continual, constant, consistent

continuous 不断延伸的，连续不断的，强调中间无间断。如：Everything in the universe undergoes continuous development and change.

continual 频频的，不停的，时断时续，中间可有间歇。如：Continual smoking is bad for health.

constant 不断的，表示持续和惯常的重现，往往没有变化。如：He attributes his health to his constant exercise.

consistent 一致的，符合的。如：His action is always consistent with his words.

continuous, constant, continual, persistent, successive

这组词都有“连续的”的意思，其区别是：

continuous语意最强，强调在时间和空间上没有间断。

constant多指习惯性的重复和不变的持续。

continual强调重复或持续发生，但连续之间允许有间断。

persistent普通用词，可指不懈的努力，也可指任何连续不断或重复出现的事物。

successive强调事物一个接一个地发生，无间断。

constant, continual, consist, frequent

constant恒久不变的

continual多次重复的，不间断的

consist由…组成

frequent日常的，频繁的

双语例句

用作形容词(adj.)

1. In our world nothing seems constant.
   在我们这个世界上似乎没有东西是永恒不变的。
2. The birth rate in this city is almost constant.
   这城市的出生率几乎是不变的。
3. The machinery requires constant maintenance.
   这些机器需要经常保养维修。
4. The constant friction between the young couple finally caused divorce.
   小夫妻俩之间经常的冲突终于导致了离婚。

用作名词(n.)

1. The speed of light is an important constant.
   光速是一个重要的常数。
2. The size can be set only as a constant.
   大小只能被设置为常数。
3. This quantity is called the universal gas constant.
   这个量叫做普适气体恒量。

权威例句

Optical constant of the Noble Metals
A New Two-Constant Equation of State
Handbook of Optical Constant of Solids II
Comments on: "A New Two-Constant Equation of State"
A unified formulation of the constant temperature molecular dynamics methods
Decomposition of Hardy Functions into Square Integrable Wavelets of Constant Shape
Population dynamics of large herbivores: variable recruitment with constant adult survival.
Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
New Method for High-Accuracy Determination of the Fine-Structure Constant Based on Quantized Hall Resistance
Morlet, J.: Decomposition of Hardy functions into squareintegrable wavelets of constant shape. SIAM J. Math. Anal. 15(4), 723-736