查询词典 computer aided engineering

The analysis of the optical signal transmission characteristics and the physical parameters provides the theoretical foundation for optimizing the design and improving the performance of AWG; and the optimizing design numerical value calculation method solves the complex problem of the optimizing design of the AWG, it can also provide a way for AWG computer aided design system; the AWG optical signal processing analysis provide a way for optical signal Fourier transform, serial and parallel transmission, circle shift, matrix transform and differential processing; the optical signal processing characteristics of AWG develop AWG to use for new field, and the optical signal processing will play an important role on all-optical networks in the future; by the definition of the wavelength transform matrix of the AWG, the signal output positions that come from these input signals of the different wavelength or the same wavelength but the different input ports and carrying different signals can be accurately determined, and the wavelength transmission matrix plays an important role for analyzing the routing of the complex optical network, or designing the network nodes such as the optical path add/drop multiplexer and optical cross connect device; the wavelength transmission matrix also provides a method for monitoring and managing the wavelength transmission of the optical network nodes; e analysis of the AWG' OXC node structure and wavelength routing provides a way for realizing the OXC, especially for multi-path/multi-wavelength OXC and the intelligence node of the optical networks; by the studying of the control plain characteristics, router, traffic engineering, program and the improved arithmetic of the wavelength routing, the method for realizing the GMPLS' OXC optical transport network is provided, and it play an important role for the study of the automatic switched optical network; the time-frequency analysis can provide more information about the dispersion and energy changes of .the pulsed light transmission in the singlemode fiber, it also provides more useful parameters for analyzing the dispersive accumulating and dispersive compensating.

AWG光信号传输特性与相关参数的分析，为进一步优化设计AWG及提高其性能提供了理论依据，而优化设计计算数值方法解决了AWG优化设计计算的复杂问题，为进一步建立AWG的计算机设计系统提供了基础；AWG光信号处理的特性分析，提出了AWG应用的新领域，为光信号的傅立叶变换、串并传输、循环移位、矩阵变换、微分处理等提供了一条途径；波长传输矩阵变换关系的建立，不仅得到了确定多路AWG每路信号从输入端口到输出端口的准确输出位置的方法，而且在分析应用AWG实现复杂的光通信网络路由的连接、特别在设计分插复用器和交叉连接器等网络节点时有重要的作用，能有效而准确地确定波长的路由关系，为实现节点波长传输路由的监控和管理提供有效手段；基于AWG的OXC结构和波长路由的确定为实现OXC技术、特别是多路多波长的OXC和光网络的智能节点技术提供了有效的方法；控制平面的特征、路由器、流量工程、程序及改进的波长路由算法的研究实现了基于GMPLS的OXC光传送网络的控制平面，为建立自动交换光网路提供了一定的基础；时频分析可以更直观和更清晰地描述脉冲信号在单模光纤中传输色散和能量的变化，为色散积累和色散补偿提供有效的分析参数。

The purpose of this study is to utilize the technologies in computer-aided design and manufacturing for the scaffold design and analysis of tissue engineering.

本研究的主要目的是利用电脑辅助设计与制造的方法，对组织工程中的细胞支架结构进行探讨，主要目标为骨组织支架。

The Comprehensive professional basis, the professional course knowledge design "winding frame Injection Mold Design",its core of knowledge is plastic mold precision mechanical design, mechanical engineering materials, computer-aided design, mold CAD\CAM\CAE and so on.

综合运用专业基础、专业课知识设计《绕线架注射模具设计》，其核心知识是塑料成型模具、精密机械设计、机械工程材料、计算机辅助设计、模具CAD\CAM\CAE等。

Following aspects are specially discussed:(1) In-situ study on the mechanism and the rate determining step of corrosion processes at the interface between metal and corrosion media;(2) Reliability of structures in corrosive environment;(3) In-situ non-destruction corrosion inspection, evaluation, repair and maintenance of engineering structures;(4) A new approach for material selection-life cycle costs, LCC;(5) Terotechnology;(6) Corrosion protection and environmental protection;(7) microbiologically influenced corrosion;(8) Computer aided design of corrosion protection;(9) Corrosion and protection of reinforced concrete structures;(10) Corrosion and protection of marine structures;(11) New development of coating and corrosion inhibitor etc.

论述了腐蚀科学与防护技术几个值得注意的发展动向，它们包括：(1)金属／腐蚀介质界面反应及其快速步骤的原位研究；(2)在腐蚀环境中结构的可靠性；(3)腐蚀的在线无损检测／评价和设备的维修保养；(4)材料优选的新方法－LCC；(5)防护系统工程学；(6)腐性防护与环境保护；(7)微生物腐蚀；(8)腐蚀防护的计算机辅助设计；(9)钢筋混凝土结构的腐蚀防护；(10)海洋工程结构的腐蚀防护；(11)防护涂层和缓蚀剂的新发展等。

Is counter Hebei Tiger core pillar enterprises, China's earliest production of safe products, one, two state enterprises, employees 775 people, including 50 engineering and technical personnel, a total investment of 20 million, with Domestic first-class assembly, painting, casting production lines and in the international advanced level of CNC punch, plasma cutting machine, stretching CAD computer-aided design and prototyping facilities such as the production of safe, filing cabinets, security door 100,000 units , A domestic first-class steel safes, and other safety equipment professional health companies.

天龙柜业有限公司是河北虎牌核心支柱企业，为中国最早生产保险柜产品的企业之一，国家二级企业，现有职工775人，其中工程技术人员50人，总投资2000万，拥有国内一流的总装，喷涂，浇注生产线及处于国际先进水平的数控冲床，等离子切割机，拉伸成型和CAD计算机辅助设计等设施，年生产保险柜，文件柜，防盗门10万台，是国内一流的钢制保险柜等安全器材专业生间企业。

This paper is a report of a computer-aided investigation into English quantifiers in Marine Engineering English.

在阅读和分析有关文献资料的基础上，作者在语义学方面对英语中的数量词作了系统的归纳和总结。

ABSTRACT AEC (Architecture, Engineering and Construction) is an important domain in Computer Aided Design.

工程CAD是计算机辅助设计领域的一个重要分支，既具有广泛的应用价值，同时又给一些传统的方法和理论带来了挑战。

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％。