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numerical
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  数值模拟
    Studies on the Numerical Simulation for Metals and Alloys During Different Medium Quenching and Its Application
    金属及合金在不同介质中淬火时的数值模拟和应用研究
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    Numerical Simulation on Laying Process and Strength Analysis of Metal Wire Rope
    钢丝绳捻制成形数值模拟与制品力学强度分析
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    Laser Welding and Numerical Simulation of the Flow Field for Titanium Alloy
    钛合金激光焊接及其熔池流动场数值模拟
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    A Study on Numerical Simulation of Microstructure and Shrinkage Cavity Formation during Solidification Process of Casting
    铸件凝固过程微观组织及缩孔缩松形成的数值模拟研究
短句来源
    Numerical Simulation of the Transient Behaviors of Full-Penetrated TIG Weld Pools
    全熔透TIG焊接熔池形态瞬时行为的数值模拟
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  数控
    Model CHK-Z6160 Automatic change Tool Numerical Control Lathe
    CHK-Z6160型自动换刀数控车床
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    Numerical Control Pulse Power Supply in the Machine Tools of Electric Spark Machining
    电火花加工机床数控脉冲电流源
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    Numerical Control Technology Lecture No.1 Introduction
    数控技术 第一讲 概论
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    Development of DK6825 Numerical Control Electrical Discharge Grinding Machine
    DK6825数控旋转电加工机床的研制
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    Numerical Control Technology Lecture NO. 3 The Control Principle of the NC Processing
    数控技术 第三讲 数控加工的控制原理
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  “numerical”译为未确定词的双语例句
    Physical and Numerical Simulation of Inner Crack Healing in Metals
    金属材料内裂纹愈合过程的物理模拟与计算机模拟
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    A RESEARCH ON POWER ADAPTIVE NUMERICAL CONTROL CONSTRAINT SYSTEM FOR LATHE
    车削功率约束适应数字控制系统的研究
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    THE DEVELOPMENT OF NUMERICAL TEMPERATURE FIELD SOFTWARE IN THERMOVISION
    热象仪“数据温度场”软件的开发
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    The applicaation of the numerical transsmision chain error measuring system for machine tools
    数字式机床传动链误差测量系统的应用
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    The Improvement of Large-scale Shearing Machine With Application of Numerical Display Technology
    应用数显技术改造大型剪切机床
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  numerical
The essential dimension is a numerical invariant of the group; it is often equal to the minimal number of independent parameters required to describe all algebraic objects of a certain type.
      
We do this in a setting that closely resembles the numerical analysis setting of Mallat and Zhong and that seems to capture something of the essence of their (practical) reconstruction method.
      
We do this in a setting that closely resembles the numerical analysis setting of Mallat and Zhong and that seems to capture something of the essence of their (practical) reconstruction method.
      
Mathematical details and numerical examples are included.
      
Then, we describe a numerical method to compute the dual function and give an estimate of the error.
      
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This article describes the method of contour-design and the machining of the ball-returning channel of a ball-returning device. By mathematical calculation and using a copying fixture, the orbit of movement of an end-milling form cutter is obtained. This simple but accurate method is useful in machining a ball-lead-screw, especially when no dimensional numerical-control milling machine is available.

本文主要阐明回珠器的回珠槽的成形设计和加工方法。通过数学计算与使用靠模夹具,求得铣削回珠器回珠槽指状铣刀的运动轨迹。这种方法比较简单可靠,尤其是对于缺少三座标数控铣床设备的工厂,制作滚珠絲杠付加工回珠槽时,可供参考。

An ALGOL-60 program is written for the calculation of the ODF for cubicmetals. Using this program the cold-rolled texture of 08Al steel sheet has beendetermined. It is shown that this texture is composed of two branches: the weakerone is concentrated {001}〈110〉, other has a stronger {111} fiber component anda strong {211} 〈011〉. In this program the ODF is expanded in a series of generalized sphericalharmonics truncated at l=16 and is inversed from two pole figures of the sample.The weights α_l~i have been introduced...

An ALGOL-60 program is written for the calculation of the ODF for cubicmetals. Using this program the cold-rolled texture of 08Al steel sheet has beendetermined. It is shown that this texture is composed of two branches: the weakerone is concentrated {001}〈110〉, other has a stronger {111} fiber component anda strong {211} 〈011〉. In this program the ODF is expanded in a series of generalized sphericalharmonics truncated at l=16 and is inversed from two pole figures of the sample.The weights α_l~i have been introduced in the calculation of the coefficients W_(Imn) ofthe series for l=4,6,8,10,14. It has been proved that a_l~i is determined by the ?_i,Φ_i and l, and is independent of the orientation distribution of the plane i in thesamples. Furthermore, the numerical values of Z_(lmn)(ξ) are calculated by a simplerecurrence relation. The program, as a whole, is rather simple and time-saving.

编写了一个计算立方晶系金属ODF的ALGOL-60程序.用该程序计算出08Al钢薄板冷轧织构的ODF,并进行了织构分析. 证明了计算ODF级数的系数W_(lmn)的权重与实测极图数据无关;并给出了计算Z_(lmn)(ξ)的简单递推关系式. 将上述两点纳入程序,使程序相应部分更臻简捷.

In order to suit the needs of automatic control of the pure bending cold-frame bender, this paper propounds mathematical models, the main points of which are the chord line control method to evaluate the controlled amount of working, the trial and error bending method to solve the problem of bounce, and the ways to deal with the error. The experiments show that the frame according with the working demands could be gained. Therefore, it is promising to carry out automatic control afterwards by means of numerical...

In order to suit the needs of automatic control of the pure bending cold-frame bender, this paper propounds mathematical models, the main points of which are the chord line control method to evaluate the controlled amount of working, the trial and error bending method to solve the problem of bounce, and the ways to deal with the error. The experiments show that the frame according with the working demands could be gained. Therefore, it is promising to carry out automatic control afterwards by means of numerical control instead of manual operation.

为适应纯弯曲肋骨冷弯机自动控制的需要,本文提出了以弦线控制法求取加工控制量、解决回弹问题的逐步逼近弯曲法和进行误差处理的方法为主要内容的数学模型。实验证明,使用这一数学模型能获得符合加工要求的肋骨。

 
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