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
- 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。 - 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。 - 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。 - Woman, even more than the working class, is the great unknown quantity of the race.
妇女比工人阶级蕴藏着更多的未知数。 - 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。 - Because of the introduction of the unknown quantity of high, many problems generate, such as ranging-error larger, unknown location information increased. The problems result in poor stability of equation-solving, low positioning-accuracy and serious error accumulation.
由于引入了高度坐标的未知量，产生的测距误差影响变大、未知位置信息增多等问题造成方程求解的稳定性较差、定位精度不高、误差累积严重。 - 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。 - 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。