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
- 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。 - 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。 - 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。 - 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。 - 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。 - The new teacher is still very much an unknown quantity but we have hopes that he will is a valuable member of our team.
新教师是谁现在还难以预料，但我们希望他会成为我们队里的重要一员。 - 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。 - He is an unknown quantity for his rivals.
对于对手们而言，他是个未知数。 - 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。 - 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。