These four categories, and the simple types themselves, were introduced in the first article in this series, "Discover Python, Part 1: Python's built-in numerical types."
这四种类别和简单类型本身在本系列的第一篇文章“Python入门，第1部分：Python的内置数据类型”中作了介绍。
Part I, the artificial boundary condition and its numerical methods based on natural boundary reduction for hyperbolic initial boundary value problems on unbounded domains is studied.
第一部分，研究无界外区域双曲型初边值问题基于自然边界归化的人工边界条件及其数值方法。
An input device, sometimes part of a standard typewriter keyboard, consisting of a separate grid of numerical and function keys arranged for efficient data entry.
一种输入设备，有时是指标准打字机键盘的一部分，包括一个单独的用于有效数据输入的数字和功能键网格。
Numerical idioms are an important part of the Chinese and English idioms, which reflect Chinese culture and that of the English-speaking countries.
数字习语是英汉习语中的一个重要组成部分，反映出英汉两个民族各自不同的数字文化。
The paper emphasizes on the methods of polynomial surface approximation which is part of numerical approximations, and analyzes the precision of polynomial function model through the measured data.
着重介绍了数值逼近方法中的多项式曲面函数模型逼近法，并通过实测数据对多项式函数模型的精度进行分析。
A new numerical method for the fractional integral that only stores part history data is presented, and its discretization error is estimated.
提出了一种只需要存储部分历史数据的分数积分的数值计算方法，并给出了误差估计。
The numerical simulation of tectonic stress field is a important part of geologic-dynamic area distribution method.
构造应力场的数值模拟是地质动力区划方法的重要组成部分。
Part one includes Chapter 2. In this part, detail calculation to magnetic field distribution of spiral winding is taken by numerical integral method.
第一部分由第二章组成，在该部分用数值积分的方法对螺旋绕组磁场的分布进行了详细的计算。
Take a numerical simulation on supersonic speed segment and the whole part of inlet duct in consideration of air induction placement, analyze its property.
并对超声速段与考虑吸气布局的进气道整体进行了数值模拟，分析了性能。
Chapter IV is the empirical part, we obtain how scaling and long-range dependence affect option pricing by numerical analysis.
第四章是本文的实证部分，通过数值分析得出标度与长记忆性对期权定价的影响。
Numerical experiments confirmed the validity of the proposed method and show that the linearization matrix of the nonlinear system is a good choice for the linear part.
数值算例验证了本文算法的有效性，并表明非线性系统的线性化矩阵作为线性部分是比较合理的选择。
Shaped mould is the important part of extrusion die for injection moulding. The cooling process of shaped plastic in shaped mould was studied using numerical simulation.
定型模是挤出模具的重要组成部分，采用数值模拟方法研究定型模内塑料异型材的冷却过程，可以指导定型模冷却系统的设计。
Principle of main component, design thought, circuit diagram of every part, model choice and numerical value count of main component is presented in hardware design part.
硬件设计部分给出了主要元器件的工作原理，硬件设计思路，各部分电路图，主要元器件的型号选择及数值计算。
The paper discusses the part machining process by the way of numerical control, especially how to improve the machining precision and prevent the part from distorting in the processing.
本文讨论用数控方法制造该零件的工艺，特别是提高加工精度、防止零件在加工过程变形的一些措施。
To machining of aspheric part of high precision and high quality, interpolation algorithm of ultra-precision aspheric numerical control system is very important.
为了加工出高质量的非球曲面器件，超精密非球曲面数控系统的数控插补算法非常重要。
The boundary forces play an important part in linking up substructures. The coupling extent decreases and a convergent numerical solution is gotten.
通过子结构间的力传递使子结构发生联系，从而降低了耦合程度，得到了收敛的数值解。
By comparing the actual production part with the simulation results, it can conclude that the numerical simulation results fit with the actual production.
实际生产零件与模拟的结果对比分析表明，数值模拟结果与实际生产基本相符。
Processing parts on a numerical controlled machine tool, the first problem is the technological design of the part.
在数控机床上加工零件，首先遇到的问题就是零件的工艺处理。
In the chapter last part, we introduce the numerical control software.
在这章最后我们介绍了数控系统的软件。
In a numerical control machine tool, servo system is an important part.
在数控机床中，伺服系统是重要组成部分。
Problems investigated in the thesis consist of two parts: one part is the numerical study of dispersion relations in relativistic plasma with Maxwell distribution;
本文所研究的问题主要包含两个部分：一是对相对论性麦克斯韦分布的等离子体色散关系的数值研究；
So far, the numerical techniques solving the hyper-singular integral equations are established, and these are called finite-part integral-boundary element method.
从而完成了超奇异积分方程组数值法的建立，这一方法现称之为有限部积分——边界元法。
A barotropic numerical model is employed to explain some of the observed features. Reasonable simulation of the circulation in the northeast part of SCS has been found.
使用一个正压数值模式，解释了一些观测到的特征，得到了南海东北部环流合理的模拟。
This method is applied to the numerical simulation of the die of automobile deck part, the simulation results also ma…
并将其应用于汽车覆盖件凹模尺寸精度的分析，数值分析结果与实际铸件吻合。
The post processing is an important part in the programming of numerical control, by using it, the cutter location file from CAM system can be converted into machining code.
后置处理是数控编程的重要环节，它的作用是将CAM系统生成的刀轨文件转化为机床的加工代码。
Accurate assessment of error in numerical solution is always a difficult part for the inverse heat conduction problem which restricts its applications in industrial measurements.
传热反问题数值解误差的准确评估一直是制约它应用于工业测量的一个难点。
It is easy convenient and highly accurate to machine the curve forming part on the NC (numerical control) lathe.
在数控车床上加工弧形零件，容易、方便、精度高。
The numerical control turret is the important component and key function part of the CNC tool machine.
数控刀架是数控机床的重要组成部分，是机床的主要功能部件。
Note:In order to be convenient for the installation of clients, the numerical value, butterfly valvejoint standard flange size and size code in the table are only one part of them.
注：为了方便客户安装要求，本表给定的数值系与蝶阀链接的标准法兰尺寸，简图中尺寸代号仅是其中一部分。
Note:In order to be convenient for the installation of clients, the numerical value, butterfly valvejoint standard flange size and size code in the table are only one part of them.
注：为了方便客户安装要求，本表给定的数值系与蝶阀链接的标准法兰尺寸，简图中尺寸代号仅是其中一部分。
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