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。
When using a common sampling tube, a formula for approximate calculation of the flow in the sampling tube is needed to meet the request of equi-speed sampling.
在使用普通型采样管时，为了满足采样现场的要求，应有一个与之相适应的等速采样流量近似计算公式。
A discrimination equation for approximate calculation of solubility of sparingly soluble salts in water at finite condition is derived by finite error of permit.
根据一定的允许误差，推导出难溶盐一定条件下，在水中溶解度的近似计算的判别式。
The equivalent time method (ETM) for approximate calculation of the transient temperatures displacements and thermal stresses in 3-d structures is proposed in this paper.
本文提出了一种计算三维结构瞬态温度、位移和热应力的近似方法——等效时间法。
Finally, a discussion is held on the approximate calculation of the microseismograph's pulse response and the influence of magnitude determination upon the determination result.
并讨论了微震仪脉冲响应的近似计算，以及震级标度对测定结果的影响。
On the principle of the deformation work this paper words out a very simple method for approximate calculation of the extrusion force in the metalic plastic extrusion processes.
运用变形功原理，推导出求金属塑性挤压过程中挤压力的一种极其简捷的近似计算式。
This paper introduces the approximate calculation of real number's or of vector parameter positive function's posterior mean, variance and forecasting density in mathematical statistics.
文章介绍了数理统计中实数或向量参数的正函数的后验平均、方差和预测密度的近似计算。
This paper introduces the approximate calculation of components and compound section of vertical vessel lug support with stiffening ring and the selection of anchor bolt circle diameter.
介绍了立式容器壳体刚性环耳式支座构件及组合截面的近似计算过程，并对地脚螺栓中心圆直径的选择作简要分析。
This paper gives some approximate formulas of the integral average value for experimental calculation on the basis of the integral mean law. Examples are given for explanation.
本文依据积分中值定理给出了适宜于实验计算的积分平均值的近似公式，并举例加以说明。
Research is carried out on the discrete noise theory and calculation method, the calculation model of discrete noise and the approximate formula under small Mach number are verified by experiments.
对低马赫数叶轮离散噪声的机理及计算方法进行了研究，并推导了离散噪声的声压计算式、低马赫数下近似计算式和轴心线上的计算式，还实验验证了计算模型。
So, predigested calculation was applied to find the simple approximate formula meeting the request of engineering precision.
因此，本文对其进行简化，得出满足工程精度要求的简易近似计算公式。
Dispersion measurement of optical glass and discussion of the approximate calculation method.
光学玻璃的色散特性测量及近似计算方法的讨论。
Poisson theorem and De Moivre-Laplace theorem present the approximate calculation formula of binomial distribution.
泊松定理、隶莫佛-拉普拉斯定理给出了二项分布的近似计算公式。
With the condition of the basic hypothesis, the approximate calculation formula was worked out on the gas folwing speed in the tubular centrifugal ventilator.
在基本假设的条件下，导出了筒形离心式通风机筒壳内气体流动速度的近似计算公式。
In this paper, we extend and improve the rectangle formula of definite integrals 'approximate calculation.
本文推广和改进了定积分近似计算的矩形公式。
A simple approximate calculation method is given, which can exactly reconstruct the long distance non ideal propagation of detonation waves in the spherical shell of the charge.
针对实验结果给出一种简便的近似计算方法，它能准确地重现炸药球壳中长程绕射爆轰波的非理想传播行为。
Calculation example shows that fatigue check and computation of steel truss bridge becomes simpler and more convenient by employing approximate formula.
算例说明，应用近似计算式将使三线钢桁梁桥的疲劳检算变得简单、方便。
An accurate linear damping calculation formula for free vibration system has been deduced and the application limits of the corresponding approximate calculation formula has been discussed as well.
本文推导出了自由衰减系统线性内耗准确计算公式，并讨论了原有的自由衰减系统线性内耗近似计算公式应用范围。
According to the results of calculation and analysis, Colebrook formula is considered as a accurate formula, and approximate formulae only can be made rough calculation and mathematical analysis.
计算和分析结果表明：科尔布鲁克公式是紊流混摩区的较准确的计算公式，近似公式只适用于粗略的计算和数学分析。
Makes the approximate calculation by the use of differentiation, and puts forward the simple and easy formula of second feeding in processing gear.
应用微分法作近似计算，推导出了齿轮加工中计算第二次径向进刀量的简易公式。
The paper then, from the Angle of practical engineering, presents the methods for analyzing the influence of residual stress and for the approximate calculation thereon.
文中也从工程实用角度，提出分析残余应力的影响及其近似计算的方法。
The approximate location of the side pile should be first measured in the cross section map, then it will be approached to the designed side pile spot by spot through calculation.
它是先在横断面图上量得边桩的大致位置，再通过计算逐点逼近设计的边桩的。
The calculation methods of lock chamber wall are mostly approximate with many assumptions, which still need proving both by theory and experiments.
对于岩基上船闸闸室墙的计算方法大多均是作了许多假定不完善的近似方法，其假定是否成立仍需在理论、实验上进一步探讨。
The influence lines method of the conversion pile loads is an approximate calculation means which is basically consistent with the exact method.
换算桩法是一种与精确解法基本相一致的近似计算法。
This approximate method is simple and suitable for fast calculation on the bending moment of continuous beams.
该法适用简单，可用于快速近似计算连续梁弯矩。
The computation results indicate that the AWE technique not only can well approximate the exact numerical solution, but also improve the velocity of calculation and save the calculation time of CPU.
计算结果表明：渐近波形估计技术不但能准确地逼近矩量法的精确数值解，还可以较快的提高计算速度，但在加速计算导体宽角度与宽频域雷达散射截面时具有不同的效果。
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。
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。
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