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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

    • He is an unknown quantity for his rivals.
      对于对手们而言,他是个未知数。
    • By the way, the unknown quantity of the integral equations arising in these problems is the equivalent density of current.
      在求解过程中所建立起来的积分方程均以等效电流为未知量。
    • The new sale director is still a bit of an unknown quantity.
      新来的销售部主任大家还不大了解。
    • 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。
    • To remove ( an unknown quantity) by combining equations.
      消去通过等式合并消去(一个未知量)
    • You must eliminate an unknown quantity.
      你必须消去一个未知数。
    • 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。
    • As negotiating partners the Taliban are at best an unknown quantity.
      塔利班作为谈判伙伴充其量是一个未知数。
    • John is a possibility for the job, but he is still an unknown quantity.
      约翰可能获得这工作但现在还是个未知数。
    • Based on the ideal forming theory, the triangle membrane cell is adopted and the deforming relations are analyzed. Equations are established with the nodal co-ordination in initial configuration as fundamental unknown quantity.
      基于理想形变理论,采用三角形膜单元,分析了单元变形关系,建立了以初始构形上的节点坐标为基本未知量的反向有限元模型。