unknown quantity
英 [ˌʌnˈnəʊn ˈkwɒntəti]
美 [ˌʌnˈnoʊn ˈkwɑːntəti]
未知量;未知数
英英释义
noun
- a variable whose values are solutions of an equation
- a factor in a given situation whose bearing and importance is not apparent
- I don't know what the new man will d
双语例句
- 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）。 - 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。 - 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。 - 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。 - 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。 - The computing efficiency is excellent with BEM since the elements are divided only on the boundaries and the number of freedom is reduced greatly through translating the inner unknown quantity to the boundary with basic solution.
由于边界单元法只在边界上剖分单元，通过基本解把域内未知量化为边界未知量求解，自由度数目大大减少，计算效率较高。 - 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。 - 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。