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unknown quantity

英 [ˌʌnˈnəʊn ˈkwɒntəti]

美 [ˌʌnˈnoʊn ˈkwɑːntəti]

未知量;未知数

化学

英英释义

noun

  • a variable whose values are solutions of an equation
      Synonym:unknown
    1. a factor in a given situation whose bearing and importance is not apparent
      1. I don't know what the new man will d

    双语例句

    • To remove ( an unknown quantity) by combining equations.
      消去通过等式合并消去(一个未知量)
    • What we would find if we could fly to the moon is an unknown quantity.
      如果我们能飞到月球上去,在那里我们将会发现什么,这是很难以预料的。
    • The new teacher is still very much an unknown quantity but we have hopes that he will is a valuable member of our team.
      新教师是谁现在还难以预料,但我们希望他会成为我们队里的重要一员。
    • Phrases like "a number" or "the number" tell us our expression has an unknown quantity, called a variable.
      像一个数或这个数之类的短语,告诉我们表达式中含有一个未知量,称之为变量。
    • The paper mainly expounds the establishment of the linear regression equation with one unknown quantity, and discusses the influence factors for the regression of calibration curve, the ways of analysis interrelated with regression equation.
      文章主要阐述了一元线性回归方程的建立,影响校准曲线回归的因索以及如何应用回归方程进行相关分析。
    • This way, the problem in a finite element analysis, the unknown field function or its derivative values in each node becomes a new unknown quantity ( that is, degrees of freedom).
      这样一来,在一个问题的有限元分析中,未知场函数或其导数在各个结点的数值就成为新的未知量(亦即自由度)。
    • Equations for the projections of various vectors onto the moving nxes and the unknown quantity and its projection in the moving coordinate system is found thereby.
      在此基础上,列出各矢量在动坐标轴上的投影方程,并求出未知量及未知量在动坐标系中的投影。
    • Woman, even more than the working class, is the great unknown quantity of the race.
      妇女比工人阶级蕴藏着更多的未知数。
    • We use x as the symbol for an unknown quantity.
      我们用x表示一个未知数。
    • With the impact of large deformation consolidation, the fluctuate part of rigidity matrix was contained fundamental unknown quantity.
      受大变形的影响,在纽曼随机有限元求解过程中,刚度矩阵波动值也含有未知量增量的相关项。