The general calculation formulas and differential approximate calculation ones are deduced, and the different machining occasions applying those jigs in condition of different demand o…
推导了三种钻模定位误差的通用计算公式和微分近似计算公式，提出了在不同定位误差要求下三种定位钻模适用的加工场合。
Using the comparison method, an approximate approach to the delay-differential equations is proposed in this paper. The proof of its convergence and calculation stability is also given.
本文应用比较方法，提出滞后型泛函微分方程初始问题的近似解法，给出了解的近似迭代序列及其误差估计式，并证明迭代序列的收敛性和计算稳定性。
In approximate calculation of radiation transport differential equation absorption coefficient is a fundamental parameter.
辐射传输方程微分方法的近似解通常以吸收系数为基本参数。
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