现通过实践，推导出单位炸药消耗量的近似计算公式，与查表求出的数值基本吻合，从而更具有实用性。
Here is another approximation formula come from practice to determine the explosive consumption. It is more practical and could be calculated precisely without the table.
本文对于矩形区域上某一内点为奇点的奇异积分的近似计算给出了优化中心数值算法，它在迭代计算过程中避免了函数值的重复计算。
This paper presents an optimum numerical algorithm of center rule for the approximate evaluation of singular integrals over rectangular domains with a inner singularity.
在大量有限元数值计算基础上，给出了包含接头螺纹结构参数及裂纹形态参数在内的应力强度因子的近似计算公式。
On the basis of a certain amount of calculations, the authors present an approximate formula, including the design parameters of the thread and the pattern data of the c…
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