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

• 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。
• 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。
• 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。
• 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；
• 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。
• 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）
• He is an unknown quantity for his rivals.
  对于对手们而言，他是个未知数。
• His ability to make decisions in a crisis is an unknown quantity.
  他在危机中作决定的能力还是个未知数。
• 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。