constants

英 [ˈkɒnstənts]

美 [ˈkɑnstənts]

n.  常数; 常量
constant的复数

柯林斯词典

• ADJ 持续不断的;重复的;一直存在的
  You useconstantto describe something that happens all the time or is always there.
  1. 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。
  2. Inflation is a constant threat...
     通货膨胀始终是个威胁。
  3. He has been her constant companion for the last four months.
     4个月来，他一直陪伴在她身边。
• ADJ-GRADED 恒定的;不变的
  If an amount or level isconstant, it stays the same over a particular period of time.
  1. The average speed of the winds remained constant.
     平均风速保持稳定。
• N-COUNT 恒定物;常数；常量；常项
  Aconstantis a thing or value that always stays the same.
  1. 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。
  2. 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, andcontinuousto describe things that happen or exist without stopping. You describe something asconstantwhen it happens all the time or never goes away.He was in constant pain. ...Eva's constant criticism.Continualis 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)。

双语例句

• Due to its complicated microstructure and absorption mechanism, it's difficult to measuring optical constants of ITO.
  由于ITO具有复杂的微观结构和吸收机制，很难准确测量出它的光学常数。
• The linear relationship between the gas phase standard enthalpies of formation and the substituent constants is discussed.
  讨论了气态摩尔标准生成焓与取代基常数间的线性关系。
• 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。
• The acoustic velocity of a rock varies according to its elastic constants and density.
  岩石的声波速度随其弹性常数和密度而变化。
• The equilibrium constants and chemical equilibria.
  得到了相平衡常数和化学平衡。
• Next time we'll talk about the temperature dependence and the pressure dependence of equilibrium constants.
  下次我们会讨论平衡常数对温度，和压强的依赖关系。
• The syntax and semantics for defining constants in IDL are identical to C++.
  在IDL中定义常数的语法和语意与C++一样。
• The evaluation of uncertainty of these physical-chemical constants determined was carried out.
  对上述测定的物理-化学常数进行了不确定度评定。
• Unlike variables, and as the name implies, constants don't change.
  和变量不同，如名字中所暗示，常量值不变化。
• You can declare class-level members and constants, private or public methods, and so on.
  您可以声明类级别的成员和常数、私有或公共方法等。