查询词典 cad

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。

These findings demonstrated that, 1 UVA may be the more important action spectrum of CAD than that of UVB; 2 the action spectrum of CAD could change from UVA to UVB and vice versa; 3 The reevaluation of MED may be advisable for the patients who have typical clinical features of CAD; 4 photoallergens and contact allergens may all play important roles in the pathogenesis of CAD and it would be testified by further follow up.

1UVA在CAD作用光谱中的地位较UVB更为重要。2CAD的作用光谱具有波动性，光敏感性增强可从一个波段变化至另一波段。3对仅临床符合CAD的患者应随访MED变化。4接触性变应原与CAD发病密切相关，进一步的随访可能会证实二者的因果关系。

In application point of view, is a bridge between CAD and CAPP, furthermore, it is also a good connecter of geometry topology information of CAD and special engineering information to improve the utility of CAD, CAPP and CAM and to make new sense for parts CAD module, from combination of geometry topology information to special engineering information.

特征不仅仅是连接CAD与CAPP、CAM等领域的一个桥梁，更重要的是它可将CAD中的几何拓扑信息与具体的工程信息紧密地连接起来，提高了CAD、CAPP、CAM等的实际应用成熟度，使得产品模型由原始无工程意义的几何拓扑信息组合变为具有工程意义的特征信息组合。

In application point of view, is a bridge between CAD and CAPP, furthermore, it is also a good connecter of geometry topology information of CAD and special engineering information to improve the utility of CAD, CAPP and CAM and to make new sense for part's CAD module, from combination of geometry topology information to special engineering information.

特征不仅仅是连接CAD与CAPP、CAM等领域的一个桥梁，更重要的是它可将CAD中的几何拓扑信息与具体的工程信息紧密地连接起来，提高了CAD、CAPP、CAM等的实际应用成熟度，使得产品模型由原始无工程意义的几何拓扑信息组合变为具有工程意义的特征信息组合。

Ob j ect i ve To reveal the relationship between PON-1 Q/R polymorphism, serum PON-1 activity and T2DM complicated by CAD in Chinese Han ethnic group and to provide objective evidence in the prophylaxes and management of T2DM complicated by CAD.Methods The subjects of the study consist of four groups:(1) T2DM group (22 men and 14 women, mean age 56 ?8 years);(2) CAD group (35 men and 6 women, mean age 60 ? 13 years);(3) T2DM complicated by CAD group(14 men and 13 women, mean age 66 ?9 years);(4) normal-control group(21 men and 12 women, mean age 57 + 11 years).

目的与方法本研究应用聚合酶链式反应—限制性片段长度多态性方法鉴定天津地区汉族人单纯T2DM患者36例、单纯CAD患者41例、T2DM合并CAD患者27例和正常对照组33例的PON-1 Q／R基因多态性的基因型，并测定血清PON-1活性，探讨PON-1在T2DM并发CAD中的作用，为该病的防治提供客观依据。

On the base of analyzing the mold design characteristic of camshaft cast, with the development method of software modularization and parameterization, the thesis finished the designs on mold design of camshaft cast which consisted of parts CAD, cast CAD, running system CAD, chill CAD and determining of mold joint.

在基于专家知识原理基础上，具体分析了凸轮轴铸件分型面的确定原则和规则知识，并将其应用于系统开发中。

Xiamen Jing Vega Precision Mold Co., Ltd., are conveniently located in Xiamen Airport, is a company specializing in developing, producing all kinds of silicone rubber molds, metal molds, injection molds and products, such as the strength of processing enterprises, related to the automobile, machinery, motors, machine tools, and many other industries, insist on "people-oriented", to attract and train a dedicated team of skilled professionals, able to design, manufacture all kinds of sophisticated silicon rubber and cold stamping die, we are in the mold design and manufacturers have a wealth of experience, mold design and manufacturing applications, CAD / CAM systems, are currently used by the world's most advanced EDS company UG (CAD / CAM integration) software, at the same time supported by Auto CAD, MASTERCAM, CIMATRON, Pro-Engineer design software, etc. to ensure that the mold design, manufacturing precision and consistency.

厦门精维佳精密模具有限公司，位于交通方便的厦门机场，是一家专业开发、生产各种硅橡胶模具、五金模具、注塑等模具及制品加工的实力型企业，涉及到了汽车、机械、电机、机床、等诸多行业，坚持"以人为本"，吸引和培养了一支富有敬业精神的技术型人才队伍，能自行设计、制造各种精密、复杂的硅橡胶及冷冲压模具，我们公司在模具设计和制造上有着丰富的经验，模具设计及制造应用的CAD/CAM系统，采用的是目前世界上最先进的EDS公司的UG软件，同时辅助以Auto CAD、MASTERCAM、CIMATRON、Pro-Engineer等设计软件，保证了模具设计、制造的精度和统一性。

CAD(a highly specific marker for lignification)was induced at early stage ofincompatible interaction and the CAD activity result from CAD gene expression ac-tivated by JXO V and was regulated by Ca2+ and △pH.

这种CAD活性的上升并非源于白叶枯病菌对其的直接激活，而源于对其基因表达的诱导，且CAD基因的表达要受到Ca2+信号的调节。

Repurpose CAD design data to publish richer technical documentation Quickly clean up CAD designs; create bills of materials; add and modify lighting, materials, or colors; create exploded views, balloons, and animations; and then save as PDF or 2D raster/vector images, creating richer and more interactive technical manuals without the need for an expensive CAD application.

重新安排的CAD设计数据的公布更丰富的技术文档快速清理的CAD设计；创造法案的材料；添加和修改的照明，材料，或颜色；制造爆炸的意见，气球，和动画；然后Save as PDF或二维点阵/向量图像，创造更丰富和更互动的技术手册，而不需要昂贵的CAD应用。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？