求积

The additional calculation error of measuring gas flow capacity through planimeter calculating av - erage value between differential pressure and static pressure with dual bellows differential pressure flow capacity table is discugsed in this paper .

本文讨论了从双波纹管差压流量卡片上，用求积仪求得差压和静压的平均值计算天然气流量方法所产生的附加计算误差；分析了差压和静压在不同的变化趋势下，附加计算误差的大小和方向；提出了改进和预防的建议。

Methods: The head and neck of 20 adult cadavers were selected and cut into cross section successively. Infratemporal space and its adjacent structures were observed and measured its length, width and area with vernier caliper and planimeter.

成人尸头颈部20例作连续横断面，观察颞下间隙及邻近结构的解剖学关系，利用游标卡尺及求积仪分别测量其长径、横径和面积。

Land-type Map ; Cartographical Programme ; Planimeter ; Network.

土地类型图；编图程序；求积仪；方格网

Then, using the second-order central difference to discretize the time derivative of the displacement, and applying the quadrature formula to the mass matrix, a fully discrete lumped mass Morley element method i...

然后利用中心差分格式离散时间方向的二阶导数，再利用适当的求积公式得到薄板弯曲问题的集中质量Morley元全离散格式。

This paper presents mechanical quadrature methods for solving the boundary integral equations of nonlinear boundary value problems.

本文提出了解非线性边值问题的边界积分方程的高精度机械求积法。

The proposed algorithm is the square root implementation of the quadrature Kalman filter.

所提出的算法是求积卡尔曼滤波算法的平方根实现。

According to the computational stability analysis conducted to the linear term time difference scheme in simple harmonic motion equation, one new semi-implicit integration scheme also is designed. By adopting a kind of revised time-explicitdifference scheme to these linear terms still included in spectral model governing equations, this defect of spectral model only partly used in semi-implicit integrating scheme, can be overcome to some degree.

以简谐振动方程中线性项时间差分格式对其计算稳定性影响为理论依据，本文设计了一种新谱模式半隐式时间积分方案，此方案通过对一般谱模式求解框架中那些隐含的线性项采用了一种显式修正的差分格式，可有效克服其国际谱模式半隐式时间求积方案实质上只是部分应用了半隐式差分格式的问题。

In this paper, the domain decomposition method is used for the elliptical boundary problems on a pentagonal region. In every sub-domain, we solve the partial differential equations with TDQ method, namely, triangular differential quadrature domain decomposition method.

为求解五边形上的椭圆型微分方程边值问题，我们借助了区域分裂法(domain decomposition method，简称DDM)，将大区域分成几个小区域，在每个小区域上，用TDQ方法，这种方法我们称之为三角微分求积区域分裂法(triangular differential quadrature domain decomposition method，简称TDQDDM)。

Quadrature including the trapezoidal method, abnormal integral triple integral,...

包括梯形求积法，反常积分，三重积分，龙贝格方法，辛卜生方法等6种方法。

It is the purpose of this thesis to study the mechanical quadrature method and itssuper-convergence for solving first kind weakly singular Volterra integral equations.

本文旨在研究Volterra积分方程的机械求积法及其超收敛技术。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。