系统的

Through hydraulic calculation, determines and tests mean friction resistance of riser and horizontal branch circuit of new two-pipe heating system, provides reference for its hydraulic design calculation.

本文分析了新双管系统与传统双管系统的不同，提出了确定新双管系统平均比摩阻联值的方法，并通过水力计算，确定并验证了新双管系统中立管与水平支路的平均比摩阻的取值，为新双管系统水力设计计算提供参考。

Fully automatic burn free block machine adopt PLC control system, it can set the various actions through adjust the flow, press etc technique parameters by touch screen,, achieve machine-human talking, the control system mainly included three units,(1) fully automatic batching and mixing control system (2) brick forming machine, pallets transferring control system (3) stacking block machine control system

全自动砌块成型免烧砖机PLC控制系统；切块成型机的全过程采用PLC智能控制，可通过触摸屏设定各个动作的流量、压力等技术参数，实现理想的人机对话。控制系统主要包括3个控制单元组成：（1）配料搅拌全自动程序控制系统，（2）成型主机、运输板机、升、卸板机自动程序控制系统，(3)码垛机控制系统。本系统的电器元件均为进口的品牌产品，如日本三菱、欧姆龙、德国西门子等，性能可靠，故障率低。

Two types of steering system are commonly used on cars: manual system and power system8 all power steering systems require a power steering pump attached to the engine.

两种类型的助力转向系统的普遍使用，对汽车：手动系统和电力系统八，所有动力转向系统需要一个动力转向泵连接到引擎。

The work of on-line analysis system of the operation state of each heater in steam unit include:(1) compile data collection procedure with DCS system;(2) consummate heat economy analysis model of energetic system;(3) base heater fault diagnosis model:(4) develop online analysis system of the operation state of each heater in steam unit.

凝汽机组各加热器运行状念在线分析系统开发的主要工作包括：(1)编写与DCS系统的数据接口程序；(2)完善热力系统热经济性分析模型；(3)建立加热器故障诊断模型；(4)开发凝汽机组各加热器运行状态在线分析系统。

In the wooden boarded system can be divided into spoon-shaped soundbox with liuqin and pipa. Round-shaped soundbox with zhongruan and daruan.

在板面系统当中，又可以分成瓢形音箱系统的柳琴、琵琶，圆形音箱系统的中阮、大阮，匣形音箱系统的筝，梯形音箱系统的扬琴。

Aimed at the problem of bar-code stick on big size product in product line, brought out the method of bar-code stick using industry robot, developed the equipment of vacuum bar-code attractor and CDT clamp. The design were analyzed of control system, gas driving system and software. And the methods to realize the system were described in detail using robot、bar-code Scanner、bar-code printer、industry computer and sensor.

针对大尺寸产品生产线在线贴标问题，提出采用工业机器人贴标的方法，研制了真空吸标装置和显像管定位夹具，给出控制系统、气动系统和软件系统的设计，详细阐述系统综合应用机器人、条码扫描器、条码打印机、工业计算机和传感器的实现方法。

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。

Based on the nonlinear dynamical model of the rotor-bearing system with rub-impact fault, the stability of the periodic motion of the system in unbalance-rotating speed plane and rotor/stator clearance- rotating speed plane were studied by the continuation-shooting algorithm. The system periodic motion and its stability were obtained. An experimental setup was developed to investigate nonlinear vibration characteristics of such rotor bearing system.

根据碰摩转子轴承系统的非线性动力学模型，利用延拓打靶算法，在碰摩转子轴承系统不平衡量-转速和碰摩间隙-转速参数域内，研究系统的周期运动及其分岔失稳等动力学行为，得到了系统周期运动的稳定性及失稳规律；建立了研究转子轴承系统碰摩故障的实验装置，通过实验，研究了转子系统碰摩故障的非线性振动的特征。

The main parts in AMT system include automatic clutch, gear box and electric control system.

AMT是在传统手排变速系统的基础上增加自动变速操纵系统，包括自动离合器、齿轮式机械变速箱和电子控制系统三个主要部份。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。