查询词典 prototype

In this paper, the mathematic model of a. c. excited generator system based on field-oriented control is established first. The simulated results operating at no-load and steady state are agreed with the test waveforms by means of 2. 8kW ACEG prototype developed by Harbin institute of large electrical machinery and Zhejiang University.

本文建立了磁场定向控制交流励磁发电机系统的数学模型，并采用哈尔滨大电机研究所和浙江大学联合研制的2.8kW ACEG系统实验原理样机，测试。。。

This will not be screening some of the gold of human digestion and absorption of Bifidobacterium factor to reach the prototype colon, for the use of intestinal bacteria, also known as " colon food."

这样就筛选出一些不被人体消化吸收的黄金双歧因子，以原形到达结肠，为肠道细菌所利用，亦称"结肠食品"。

This will not be screening some of the gold of human digestion and absorption of sugar Bifidus factor to reach the prototype colon, for the use of intestinal bacteria, also known as colonic food.

这样就筛选出一些不被人体消化吸收的黄金双歧因子糖，以原形到达结肠，为肠道细菌所利用，亦称"结肠食品"。

Shaped at the end of the ancient Greece, the acanthus scroll is famous for its beautiful shape and special construction. These traits make itself pretty popular in the world. And as the prototype of many other motifs, it plays a very important role in the history of the pattern.

成形于古希腊末期的莨苕叶饰漩涡纹样在外观和构成形式上具有极为显著的特点，这些特点使它受到大量运用和推广，其基本图式，作为诸多变体的母体在整个世界纹样史上占据举足轻重的地位。

A prototype system is developed finally with ACIS 7.0 and Visual C++ 6.0, and some samples are used to proved the algorithms involved in this paper.

根据本文提出的算法，在几何造型系统ACIS 7.0和VC++6.0平台上开发了组合夹具夹紧方案自动规划的原型系统，该系统通过对几个实例测试，验证了本文提出的算法。

The architectures and properties of ACIS and HOOPS are presented respectively in this paper. The prototype of Dcam is taken as an example to explain the process of interaction between them and a method to build graphical system based on ACIS and HOOPS is put forward.

介绍了ACIS与HOOPS图形平台各自的数据结构与特点，剖析了两者之间的交互，以开发的Dcam凸轮设计系统为例，进一步阐明了两者的沟通与协调过程，为基于ACIS与HOOPS双重平台的图形系统开发提供了方法。

The control algorithm prototype was built in the environment of Matlab/Simulink,and a hardwareintheloop platform was established. Using the platform, the control algorithm prototype was verified by testing. The results show that the algorithm can restrict the excessive slip or skid effectively and improve the traction performance,the brake ability and the steering stability of vehicles.

在Matlab/Simulink环境下建立了控制算法原型，并搭建了防滑控制系统硬件在环试验平台，通过硬件在环试验对控制算法原型进行的验证结果表明，算法能有效抑制车轮的过度滑转或滑移，提高车辆牵引性能、制动性能和操纵稳定性能。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

ParaBase system also shows that the technical plan for"YH-3"parallel database system is feasible and successful and provides important supports both in techniques and in prototype for the final implementation. Owing to the prototyped system the roundabout course in the final implementation of"YH-3"parallel database system may be avoided or lessened. In addition, this prototype system provides an ideal platform for further parallel database researches too.

ParaBase的实现在现有机器环境和数据库环境下最大限度地验证和支持了&半重写变换&模式实现并行数据库系统的思想并研究其实现效率；证明了&银河-3&并行数据库系统技术方案是可行的和成功的，并为&银河-3&并行数据库系统的最终系统实现提供重要的技术支持和原型支持，使系统实现时不走或少走弯路；此外，该原型系统为进一步研究并行数据库技术提供了一个实验平台。

RPT, data prototype and virtual prototype technology all are important means of product innovation and rapid development, and they all are important members of AMT group.

快速成形技术、数字原型和虚拟原型技术一起，都是产品创新和快速开发的重要手段，他们已成为先进制造技术群的重要组成部分。

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％。