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
• 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

• Use 0-1 combined type BEM to establish discrete boundary integral equation with potential function and its normal derivatives as unknown quantity in node;
  利用0-1混合型边界元剖分计算域的所有边界和通过波面高度和势函数的时间过程推算，建立节点上以势函数和波面高度增量为未知数的离散型边界积分方程；
• 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。
• 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。
• We use x as the symbol for an unknown quantity.
  我们用x表示一个未知数。
• 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。
• Youth is the smile of the future in the presence of an unknown quantity, which is itself.
  青春就是未来在向一个陌生人微笑，而这陌生人就是自己。
• As a teacher, he's still an unknown quantity.
  作为一名老师，人们还不知道他是什么样。
• To remove ( an unknown quantity) by combining equations.
  消去通过等式合并消去（一个未知量）
• He is an unknown quantity for his rivals.
  对于对手们而言，他是个未知数。
• 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。