The second, there is much approximate calculation and the error will be accumulated.
其次它近似计算比较多，误差大。
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。
Some practical and approximate calculation methods can be used in designing and installing buildings.
提出的一些实用近似的计算方法可供房屋设计安装单位参考。
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。
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。
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。
The latter is a approximate calculation method, it is simple and convenient, and can be easily seized and used by engineers.
后者为一种近似计算法，简单方便，易于工程人员掌握和使用。
In arguine, we resort ot electronic computer's analogue, approximate calculation and the judgement of the method's efficiency in practical use.
在理论方法上，应用了计算机模拟，并进行验证、近似计算以及抽样性能分析。
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。
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 camber equation has been established by means of space alternate coordinate; the numerical approximate calculation is replaced by accurate calculation.
利用空间坐标变换法，得出弯管状屏蔽体的曲面方程式，用精确解析解取代了常用的数值近似解。
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。
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。
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。
By using perturbation mode, we study the free falling eastward body, and present the first approximate calculation formula of the rotation angular velocity of the earth.
应用微扰论的方法对落体偏东进行研究，给出了在地球自转角速度一级近似下的计算公式。
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。
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。
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。
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。
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。
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 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。
The formula presented in Tom 3 of "Mining Design Manual" is for approximate calculation, the area value determined from which is some less than that obtained from the formula given here.
在《采矿设计手册》第3卷载的圆弧拱巷道断面积公式是近似计算的，其值比本文推导公式的值稍小。
The approximate calculation methods to control the cracks in the top wall of brick and concrete structure due to temperature difference and the related precaution - ary measures are put forward.
提出了控制砖混结构墙顶温度裂缝的近似计算方法以及有关防治措施。
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。
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。
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。
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。
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