adj.(形容词)

1. 不变的，固定的，恒定的，一定的，始终如一的，恒久的
2. 忠诚的，忠贞不渝的，忠实的
3. 不停的，接连不断的，持续的，不断的，连续发生的
4. 不屈不挠的
5. 重复的
6. 稳定的

n.(名词)

1. 不变的事物，不变物
2. 【数、理】常量，常数，恒量，衡量
3. 恒定（值），不变值
4. 系数
5. 率
6. 【语法】定项
7. 持久
8. Benjamin constant（Henri Benjamin constant de Rebecque）贡斯当（1767-1830，法国作家、政治家，原籍瑞士）
9. 常量绝对常数（absolute constant）
10. 常量任意常数（arbitrary constant）
11. 常项

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

Noun:

1. a quantity that does not vary

2. a number representing a quantity assumed to have a fixed value in a specified mathematical context;

   "the velocity of light is a constant"
   

Adjective:

1. unvarying in nature;

   "maintained a constant temperature"
   "principles of unvarying validity"
   

2. steadfast in purpose or devotion or affection;

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

3. uninterrupted in time and indefinitely long continuing;

   "the ceaseless thunder of surf"
   "in constant pain"
   "night and day we live with the incessant noise of the city"
   "the never-ending search for happiness"
   "the perpetual struggle to maintain standards in a democracy"
   "man's unceasing warfare with drought and isolation"
   "unremitting demands of hunger"
   

1.持续不断的;重复的;一直存在的
You useconstant to describe something that happens all the time or is always there.

e.g. She suggests that women are underconstant pressure to be abnormally thin...
她暗示说女性总是处在保持身材异常瘦削的压力之下。
e.g. Inflation is aconstant threat...
通货膨胀始终是个威胁。

constantly
The direction of the wind is constantly changing...
风向不断变化。
We are constantly being reminded to cut down our fat intake.
不断有人提醒我们要减少脂肪的摄入量。

2.恒定的;不变的
If an amount or level isconstant, it stays the same over a particular period of time.

e.g. The average speed of the winds remainedconstant.
平均风速保持稳定。

3.恒定物;常数；常量；常项
Aconstant is a thing or value that always stays the same.

constant在线翻译

e.g. In the world of fashion it sometimes seems that the onlyconstant is ceaseless change...
在时装界，有时似乎唯一永恒不变的东西就是不断的变化。
e.g. Two significant constants have been found in a number of research studies.
若干研究已经发现了两个重要常量。

You can useconstant,continual, andcontinuous to describe things that happen or exist without stopping. You describe something asconstant when it happens all the time or never goes away.He was in constant pain. ...Eva's constant criticism.Continual is usually used to describe something that happens often over a period of time, especially something undesirable....his continual drinking. ...continual demands to cut costs. If something iscontinuous, it happens all the time without stopping, or seems to do so....days of continuous rain. ...a continuous background noise.
constant, continual 和 continuous 均可用来描述不断发生或一直存在的事物。constant 表示一直在发生或从未消失：He was in constant pain (他的疼痛一直没有消停)，Eva's constant criticism (伊娃没完没了的批评)。continual 通常用来形容一段时期内经常发生的事，尤其是令人讨厌的事：his continual drinking (他经常饮酒)，continual demands to cut costs (不断要求削减成本)。continuous 表示一直没有间断，或者貌似如此：days of continuous rain (淫雨霏霏的日子)，a continuous background noise (持续不断的背景噪音)。

1. 常量：IABLE) 常量(constant)和信号(SIGNAL) 前 两种可以从传统的计算机高级语言中找到对应的数据类型 其语言行为与高级语言中的变 KONXIN 杭州康芯电子有限公司第 4 章 VHDL 语言要素 KONXIN 59 量和常量十分相似 但信号这一数据对象比较特殊 它具有更多的硬件特征是 VHDL 中 最有特色的语言要素之一 从硬件电路系统来看 变量和

2. 恒定的：d)a=dv/dt=-9.8 这个说明加速度是恒定的(constant)突然想到题目说负的要说明方向. . . 那加速度就是9.8,方向朝下. .

3.constant：const; 常数，常量

4.constant：c; 常数

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。

The birth rate in this city is almost constant.

这城市的出生率几乎是不变的。

The machinery requires constant maintenance.

这些机器需要经常保养维修。

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。

The speed of light is an important constant.

光速是一个重要的常数。

The size can be set only as a constant.

大小只能被设置为常数。

This quantity is called the universal gas constant.

这个量叫做普适气体恒量。

constant interruptions

无休止的干扰

a constant stream of visitors all day

整天络绎不绝的游客

Babies need constant attention.

婴儿一刻也离不开人。

This entrance is in constant use.

此入口经常使用。

travelling at a constant speed of 50 m.p.h.

以每小时50英里的恒定速度行驶

She suggests that women are under constant pressure to be abnormally thin...

她暗示说女性总是处在保持身材异常瘦削的压力之下。

Inflation is a constant threat...

通货膨胀始终是个威胁。

The average speed of the winds remained constant.

平均风速保持稳定。

In the world of fashion it sometimes seems that the only constant is ceaseless change...

在时装界，有时似乎唯一永恒不变的东西就是不断的变化。

Two significant constants have been found in a number of research studies.

若干研究已经发现了两个重要常量。

In history, change is constant.

在历史上, 变化是不断的.

The market is in a constant state of flux.

市场行情在不断变化.

Salaries are kept under constant review.

薪金问题要一直不断审订.

The distortion of form is a constant in his painting.

曲线型是他绘画的一贯特点.

I'm tired of your constant complaints; go away and leave me in peace!

我讨厌你老是抱怨; 走开,让我安静点!

Her constant nagging provoked him.

她不断地唠叨激怒了他.

I am weary of his constant complaints.

我对他不断发牢骚感到厌烦.

The seeing eye dog was the blind man's constant companion.

导盲犬是盲人的忠实伙伴.

The surface cratered with the constant dropping of water.

表面因经常滴水而成坑.

Even great musicians require constant practice.

即使是伟大的音乐家也需要不断的练习.

constant rejection has sapped her will.

不断的被拒绝逐渐使她丧失了信心.

Every member of the organization should be constant to its regulations.

这组织的成员都得遵守规则.

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.

He laboured under the constant misapprehension that nobody liked him.

他总是误认为没有人喜欢他.

Even outstanding musicians require constant practice.

既使是好乐师也需经常练习.

His constant joking was beginning to annoy her.

他不停地开玩笑，已开始惹她生气。

用作定语～+ n.

1. Keep the chemicals at a constant temperature.
   把这些化学用品保持在恒温中。
2. Her constant nagging drives me crazy.
   她不停地唠叨使我发狂。
3. The seeing eye dog was the blind man's constant companion.
   导盲犬是盲人的忠实伙伴。

用作表语S+be+～

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. In history, change is constant.
   在历史上变化是不断的。
3. He alone remained constant.
   只有他一个人忠贞不渝。

S+be+～+ prep .-phrase

1. They were constant in friendship.
   他们之间的友谊永恒。
2. He is constant to his friend.
   他忠于朋友。

～+名词

• constant%20friend">constant friend忠实的朋友
• constant%20nagging">constant nagging不停地唠叨
• constant%20temperature">constant temperature恒温

～+介词

• constant%20in%E3%80%94to%E3%80%95%20friendship">be constant in〔to〕 friendship对友谊忠贞

• The best-resolved of men, The constantest.

  出自：Milton

continual，continuous，successive，constant，persistent

这些形容词均有“连续的”、“不断的”之意。

continual强调重复或持续发生，但连续之间允许有间断。

continuous语意最强，强调在时间和空间上没有间断。

successive强调事物一个接一个地发生，无间断。

constant多指习惯性的重复和不变的持续。

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。

• ☆ 14世纪晚期进入英语，直接源自拉丁语的constantem，意为平稳的。