In order to improve the classification quality of decision system, a strategy of data mining classification rules based on rough approaching approximation measurement in data ware is proposed.
为了提高决策系统的分类质量，探讨了一种在数据仓库中基于粗糙逼近近似度量的挖掘分类规则策略。
A series of Gaussian digital approximation filters used in roundness measurement were designed on the basis of approximation method and bilinear transformation.
文中用逼近法和双线性变换法，设计了用于圆度测量的高斯数字逼近滤波器，并给出了零相移的递归滤波算法，计算量小，计算效率高，易于实现。
The author describes the approximation and method of undetermined coefficients used in the practice of flowrate measurement.
介绍了笔者在流量计量实践中所用过的逼近法和待定系数法。
In the experiment of trilinear pendulum, the influence of the approximation used in the deduction to the result of measurement is analysed, and the way to reduce this influence is pointed out.
讨论了在推导转动惯量的测量公式时采用的近似方法对测量结果带来的影响，指出了减小其影响的途径。
According to the approximation of the velocity profile of turbulent flow in cylindrical pipes, flow rate measurement based upon the maximum velocity of circular cross-section is proposed.
根据已知圆管紊流流速分布的近似模地，研究了使用管道轴线处的最大流速测量流量的方法。
Note: This is not an exact measurement or an exact formula and should be treated as a rough approximation.
注意：这不是十分准确的测量或一个准确的公式，这只是个近似值而已。
Since human dimensions vary, any measurement so taken would be only a rough approximation and not to be trusted where precision was required.
由于各人的身材大小不等，这种度量方法只能是一种粗略的近似值，凡是需要精确计量的场合，这种方法就不可信了。
Since human dimensions vary, any measurement so taken would be only a rough approximation and not to be trusted where precision was required.
由于各人的身材大小不等，这种度量方法只能是一种粗略的近似值，凡是需要精确计量的场合，这种方法就不可信了。
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