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
- 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。 - In algebra, the sign x usually denote an unknown quantity.
在代数中，x符号通常代表一未知的量。 - 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。 - 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。 - What we would find if we could fly to the moon is an unknown quantity.
如果我们能飞到月球上去，在那里我们将会发现什么，这是很难以预料的。 - 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。 - 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。 - 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 remove ( an unknown quantity) by combining equations.
消去通过等式合并消去（一个未知量）