unknown value meaning in English
n.未知值
Examples
- a null value is useful to indicate an undefined or unknown value
空值对于指示未定义的或未知的值很有用。 - null is a special value in databases that represents the concept of an unknown value
在数据库中，null是一个特殊值，表示未知值的概念。 - in addition, unknown values are allowed for the property names, and their values are not validated by the jdbc driver for case sensitivity
此外，属性名允许使用未知的值，jdbc驱动程序不会对这些值进行大小写验证。 - electro motive strain is a common method used to measure the maximum strain in stress concentration district, or mostly to extrapolate certain unknown value of stress utilizing some known value
应变电测法是测量应力集中区最大应变值的一种比较常用的方法，主要是利用某些可测点的值去推测不可测点的值，即通常所说的外推法。 - making use of multivariate statistica1 analysis method of mathematical statistics, the ration composite abnormity mode1 is established . we express dispersed geochemical exploration data in image form, and make optimum estimates of unknown values with known values
本文运用数理统计中的多元统计分析方法，建立定量组合异常模型，将离散型的化探数据表达成图像形式，利用己知值对未知值作出最佳估计。