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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

    • If he was to quench his thirst for knowledge, he could do nothing other than explore the unknown quantity.
      他要满足求知欲没有别的办法,只能到自己陌生的领域中去探索。
    • We use x as the symbol for an unknown quantity.
      我们用x表示一个未知数。
    • To remove ( an unknown quantity) by combining equations.
      消去通过等式合并消去(一个未知量)
    • 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。
    • By means of regression equation with one unknown quantity for leaf area of Biota orientalis, ecological and economical benefits of this tree species were quantitatively obtained.
      通过求出侧柏叶面积的一元回归模型,定量说明济南近郊山体侧柏树的生态效益、经济效益。
    • 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。
    • To her the outside world was a totally unknown quantity.
      对她来说,外部世界完全是个未知数。
    • Inquiring Into Determining the Unit Price of Piece Rate Wage by the Regression Linear Equation With One Unknown Quantity
      运用一元线性回归方程制定计件工资单价的探讨
    • An equation in which the highest power of an unknown quantity is a square.
      未知量的最高幂是平方的等式。
    • You must eliminate an unknown quantity.
      你必须消去一个未知数。