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With plastic brainpan product as an example , the plastic melt flow is analyzed and simulated by Moldflow software , and the mold is designed by the adoption of UG software according to the basic process of modern mold design method , leading to reasonable injection molding parameters , optimized mold structure , two dimensional drawing of mold structure and three dimensional shape for NC machining .

以塑料头盖制品为例，按照现代模具设计方法的一般过程，综合运用Moldflow软件进行塑料流动分析和UG软件进行模具设计，得到了合理的注射工艺参数和优化的模具结构，以及模具的二维工程图和用于数控加工的零件三维编程模型。

With plastic brainpan product as an example,the plastic melt flow is analyzed and simulated by Moldflow software,and the mold is designed by the adoption of UG software according to the basic process of modern mold design method,leading to reasonable injection molding parameters,optimized mold structure,two-dimensional drawing of mold structure and three-dimensional shape for NC machining.

黎文峰，苗玉慧，基于UG和Moldflow的塑料模具设计以塑料头盖制品为例，按照现代模具设计方法的一般过程，综合运用M oldflow软件进行塑料流动分析和UG软件进行模具设计，得到了合理的注射工艺参数和优化的模具结构，以及模具的二维工程图和用于数控加工的零件三维编程模型。

In this paper,first,we analyse and design the main circuits of the power supply,and we explain how to use the three-phase spwm wave generator SA4828,and then we also explain the IGBT drive module EXB841,after that,we discuss the IGBT buffer circuit and the protective circuits of the system.finally,we discuss the process of the software design.

在本文中，我们首先对电源主电路进行分析与设计，然后对SA4828三相SPWM波发生器的使用和编程进行了介绍，还对IGBT驱动模块EXB841进行了介绍，另外，我们还讨论了IGBT管的缓冲电路和系统的保护电路，同时分析了系统的软件设计过程。

This paper presents an IFMC CAD model that consits of a geometry model and a material model, in which the geometry space acts as a base space and the material space acts as a bundle space. In this CAD model, the geometry model is based on the non-manifold model. In addition, a half-face data sturucture, which is derived from the half-edge data structure with the non-manifold feature of IFMC taken into account, is adopted to represent the geometry and topology information of the component. For the material model of IFMC, this paper focuses on the FGM component representation firstly and present a simplex-subdivision based CAD data exchange format, in which the material information is represented as a (n-1) simplex and material distributing feature is represented by the interpolation on the simplex-subdivision. Based on those, a part-building orientation optimization algorithm and an adaptive slicing algorithm for FGM component are presented in the paper. For the IFMC material model, the IFMC material information representation is divided into a meso-scale and a macro-scale representation. In the meso-scale, a concept named parameterized periodic functional meso-structure is presented as a unique form to represent the FGM (the homogeneous materials are regarded as a special FGM), the composite and the functional meso-structure material. The model of PMS is a three-tuple that contains the space state informatation, the material parameter and the material meso-scale distribution feature. The macro-scale material information representation is similar to the FGM components by interpolation of the control parameter of the periodical functional meso-structure based on the simplex-subdivision. Through an example of manufacturing-oriented IFMC CAD data processing, it is proved that the IFMC CAD model and the material information representation and process method proposed in this paper can provide a reliable data support for IFMC digital concurrent design and manufacturing.

本文将理想材料零件CAD模型建立在以几何空间为底空间、以材料空间为丛空间的结构上，使用非流形几何模型作为理想材料零件几何拓扑模型的基础，并在半边数据结构基础上，针对理想材料零件的非流形特征局限内部边界上的特点，给出了一个半面数据结构来表述零件的几何拓扑信息；对于理想材料零件的材料模型，本文先从功能梯度材料零件的信息表述与CAD数据交换和处理入手，将材料信息表述为（n-1）维单纯形，然后通过对三维几何区域的单纯剖分，以插值的方式表述零件材料分布特征；在此基础上，根据功能梯度材料零件分层制造中对CAD数据处理的要求，给出了综合考虑零件几何特征与材料特征的生长方向优化算法和自适应切片算法；而对于文中所定义的理想材料零件，本文将其材料信息表述分解到细观和宏观两个尺度进行，首先给出了细观尺度上参数化的周期性功能细结构概念，以此来统一表述功能梯度材料（单质材料作为特殊的功能梯度材料看待）、复合材料和功能细结构材料；把周期性功能细结构模型化为一个包含空间状态信息、材料构成参数和材料细观分布特征参数的三元组，以表达零件的细观材料特征；对于零件宏观的材料变化特征，则同样在几何区域单纯剖分的基础上，通过对细观尺度上周期性功能细结构控制参数的插值来完成；通过理想材料零件CAD数据处理的算例，验证了本文中理想材料零件CAD模型及材料信息表述与处理方法完全可以为理想材料零件的数字化制造提供可靠的数据支持。

This paper presents an IFMC CAD model that consits of a geometry model and a material model, in which the geometry space acts as a base space and the material space acts as a bundle space. In this CAD model, the geometry model is based on the non-manifold model. In addition, a half-face data sturucture, which is derived from the half-edge data structure with the non-manifold feature of IFMC taken into account, is adopted to represent the geometry and topology information of the component.For the material model of IFMC, this paper focuses on the FGM component representation firstly and present a simplex-subdivision based CAD data exchange format, in which the material information is represented as a (n-1) simplex and material .distributing feature is represented by the interpolation on the simplex-subdivision. Based on those, a part-building orientation optimization algorithm and an adaptive slicing algorithm for FGM component are presented in the paper.For the IFMC material model, the IFMC material information representation is divided into a meso-scale and a macro-scale representation. In the meso-scale, a concept named parameterized periodic functional meso-structure is presented as a unique form to represent the FGM (the homogeneous materials are regarded as a special FGM), the composite and the functional meso-structure material. The model of PMS is a three-tuple that contains the space stateinformatation, the material parameter and the material meso-scale distribution feature. The macro-scale material information representation is similar to the FGM components by interpolation of the control parameter of the periodical functional meso-structure based on the simplex-subdivision.Through an example of manufacturing-oriented IFMC CAD data processing, it is proved that the IFMC CAD model and the material information representation and process method proposed in this paper can provide a reliable data support for IFMC digital concurrent design and manufacturing.

本文将理想材料零件CAD模型建立在以几何空间为底空间、以材料空间为丛空间的结构上，使用非流形几何模型作为理想材料零件几何拓扑模型的基础，并在半边数据结构基础上，针对理想材料零件的非流形特征局限内部边界上的特点，给出了一个半面数据结构来表述零件的几何拓扑信息；对于理想材料零件的材料模型，本文先从功能梯度材料零件的信息表述与CAD数据交换和处理入手，将材料信息表述为(n-1)维单纯形，然后通过对三维几何区域的单纯剖分，以插值的方式表述零件材料分布特征；在此基础上，根据功能梯度材料零件分层制造中对CAD数据处理的要求，给出了综合考虑零件几何特征与材料特征的生长方向优化算法和自适应切片算法；而对于文中所定义的理想材料零件，本文将其材料信息表述分解到细观和宏观两个尺度进行，首先给出了细观尺度上参数化的周期性功能细结构概念，以此来统一表述功能梯度材料(单质材料作为特殊的功能梯度材料看待)、复合材料和功能细结构材料；把周期性功能细结构模型化为一个包含空间状态信息、材料构成参数和材料细观分布特征参数的三元组，以表达零件的细观材料特征；对于零件宏观的材料变化特征，则同样在几何区域单纯剖分的基础上，通过对细观尺度上周期性功能细结构控制参数的插值来完成；通过理想材料零件CAD数据处理的算例，验证了本文中理想材料零件CAD模型及材料信息表述与处理方法完全可以为理想材料零件的数字化制造提供可靠的数据支持。

Chinese cable reel to the door wide application of the plane, with the big cable in the road so that the process is to avoid being hurt. must maintain an appropriate tension here at present, the cable reel drives used in three main ways : namely (1) the torque-motor (2) use of cage-plus motor hysteresis coupling;(3) The torque motor controller to increase frequency hysteresis couplings.

中文摘要：电缆卷筒在门机上被广泛应用，在使电缆随大车的行进过程中要避免受到伤害，必须保持一个合适的张力，这里介绍了目前门机电缆卷筒驱动装置主要采用的三种方式：即（1）采用力矩式电机；（2）采用笼型电机加磁滞式联轴器；（3）采用力矩控制器加变频电机加磁滞式联轴节。

With the use of karst water deposit (calc-sinter) analysis system, historical document analysis system, and modern observation data statistic analysis system, we study the evolutive regularity in three temporal scales and the evolutive process in geologic temporal scale in Niangziguan karst water spring, and divide this karst water evolution into five stages.

同时运用岩溶沉积物分析法、历史文献分析法、现代观测资料的统计分析法研究了娘子关泉岩溶水系统在三个时间尺度上的演化规律及在地质时间尺度上的演化过程，并将该岩溶水系统演化分为五个阶段。

Most historians therefore consider the establishment of the Empire to be a process that started with the split of the Frankish realm in the Treaty of Verdun in 843, continuing the Carolingian dynasty independently in all three sections.

多数史学家因此认为帝国的建立的过程是开始于法兰克王国分裂在843年瓦尔登条约的签订，和Carolingian王朝所在的三个地区的独立发展。

Using molecular simulation and modern instruments analysis, the chain three-dimensional structure was predicted, The influence of inorganic compound on its structure and property in solution system as well as microcosmic interaction process between KGM and carrageen were researched.

本文以葡甘聚糖为试材，运用分子模拟同仪器分析相结合的手段，预测了葡甘聚糖分子链的高级结构，分析了无机分子对其结构、性能的影响，探讨了葡甘聚糖与卡拉胶微观作用机理。

This paper tries to make a genealogical study of it from three aspects: visual centrism and the critique of it, the simulating process in the society of spectacles, and the expansion of British cultural studies.

本文拟从三个方面梳理视觉文化研究的学术谱系：视觉中心主义以及对它的批判、奇观社会中的拟象进程以及英国文化研究的扩展。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。