系统的

To accelerate the widespread of Synchronous Chip Seal and improve the operation quality of Synchronous Chipsealer, key techniques which influence the operation quality is studied detailedly, including the control of distributing quality, the dynamics characteristics of hydraulic system and the spray characteristics of asphalt nozzle of Synchronous Chipsealer.1 The factors which influence Synchronous Chip Seal quality are studied. Fiducial probability of simultaneous distribution density is advised to be used in evaluating the distribution bias and standard deviation of asphalt and aggregates simultaneously, which is more advanced than the single index evaluation method used before.2 The volume efficiency formula of asphalt pump is revised after analyzing the data of volume efficiency with mathematical statistics, which is helpful to match the asphalt spray system and control the flow out of asphalt pump accurately. With equation deduction and experiment, dynamic of hydraulic system used in Synchronous Chipsealer is studied, which lay the theory foundation on improving the stability and efficiency from design and controlling.4 Simulation on hydraulic system used in Synchronous Chipsealer is done with AMESim; the results indicate that multi-circle parallel connected hydraulic system with constant pressure power is better than that with load-sensing pressure power at present, because the latter will oscillate when the multi circles work at the same time. This conclusion has been proved during the debug of Synchronous Chipsealer.5 Asphalt nozzle characteristics, such as flat jet shape, flow distribution, are studied with experiment, the results indicate that cross quality of asphalt distributing is not increased linearly follow the increase of fan overlap level, the best point usually exists between two whole overlap level, asphalt distributing quality is better than±4% at the 2.5 overlap level, meets the superior specified in standard; The distribution quality of Synchronous Chipsealer can be increased by spray asphalt of different flow rang with nozzle of different diameter

为了加快同步碎石封层技术的推广，提高同步碎石封层设备的作业质量，本文对同步碎石封层设备作业质量的影响因素与控制方法、液压系统的动力学特性和沥青喷嘴的喷洒特性等关键技术进行了深入细致的研究：1研究了影响同步碎石封层作业质量的因素，提出了采用联合密度分布置信概率对同步碎石封层中沥青洒布量和碎石撒布量的系统偏差和标准差指标进行综合评价的方法，克服了传统评价方法只能对单一指标进行评价的缺陷；2采用数理统计的方法，研究了沥青泵的容积效率特性，修正了沥青泵容积效率公式，为沥青喷洒系统的匹配和沥青泵出口流量的精确控制提供了依据；采用数理方程推导与试验相结合的方法，研究了同步碎石封层设备液压系统的动力学特性，为从设计和控制的角度提高同步碎石封层设备液压系统的稳定性和效率奠定了理论基础；3运用AMESim软件对采用负载敏感控制和恒压控制的两种同步碎石封层设备液压系统进行仿真，结果表明：负载敏感控制的并联液压系统在多回路同时工作时，由于液压泵排量控制参考压力不稳定，容易引发液压系统振荡，恒压控制的并联液压系统是目前技术条件下比较理想的同步碎石封层设备工作装置驱动方案；该结论亦通过同步碎石封层设备装机试验得到了验证。4采用试验的方法对沥青喷嘴的喷洒特性进行了研究，结果表明：沥青洒布的横向精度并不是随着喷洒扇面重叠度的增加线性增加，其最高点通常出现在二个重叠度之间的"半重叠位置"，"2.5重叠"洒布时，沥青的横向洒布精度≤±4%，可以达到国家相关标准中的优级标准；同步碎石封层设备还可以根据不同洒布量情况下的流量需求，采用不同通径的喷嘴进行喷洒，提高沥青洒布精度。

The solution of some practical problems in engineering can be regarded as that of periodic solution of nonlinear autonomous systems according to the opinion of mathematics, The problems of this kind are analysed by means of the direct numerical method in this paper,The simple and convenient Draw Newton Method is applied for solving the parameter vectors in iteration course along with the calculation of a practical engineering problem.

日I崖旨J，'口工程中的一些实际问题往往可以归结为非线性自治系统，例如描述同步发电机暂态稳定性问题的转子摇摆方程，即是一典型的非线性自治系统。虽然可以用各种小参数摄动法求解非线性系统，但是这类方法是依据对线性系统的解进行"摄动"来逼近非线性系统解的。因而当系统

General Statistics Weight : 2.5 tons Driving : 6-axle electric driving system Main components : Crew chamber for commander and gunner, Image generation system, Instructor room, and Waiting room Training Scope :- Total display system for driver - Automatic fire distinguisher - Comprehensive A/C system - CTIS application

重量： 2.5吨驾驶： 6轴电机驱动系统主要部分组成：乘员室为指挥员和炮手，图像生成系统，指导员室，等候室培训范围：-共计显示系统的驱动程序-自动消防d istinguisher -综合的A / C系统-C TIS应用

Control systems which include the control problems of the switched linear systems and distributed parameter control systems.

控制系统：包括切换系统和分布参数系统的控制问题。

Therefore, a control problem of distributed parameter systems is simplified to a control problem of a linear system.

再次，证明了管式反应器具有可控性，应用最优线性二次型调节器方法对该系统进行控制，将分布参数系统这一特殊的、复杂的系统的控制问题简化为一般线性系统的控制问题，同时，提出了一种将分布参数系统这种非线性系统的控制问题转化为一般线性控制理论进行控制的方法。

In order to implement systematic real-time communication, we use dynamic data exchange technology to exploder the data interface of manufacture control system and safety control system.

为了达到生产控制系统和安全控制系统的快速实时通讯，利用动态数据交换技术，开发生产控制系统和安全控制系统的数据接口。

It includes four subsystems of neural system, blood cycle system, assimilation system and egestion system.

企业生命系统的内部组织结构包括神经系统、血液循环系统、消化吸收系统和排泄系统。

The paper introduced the demand analysis, system analysis and system design of the dynamic electrocardiogram analysis system.

论文详细地介绍了动态心电图分析系统的需求分析、系统分析和系统设计。

Aiming at the composition of shipborne UAV system and the main problems in its embarkment on ships,this paper analyzed and proposed the model selection requirements on the three subsystems(aerocraft,task equipment and ship surface system) of the shipborne UAV system,and brought forward suggestions on development thoughts of shipborne UAV system.

针对舰载无人机系统的组成以及上舰存在的主要问题等进行分析，提出舰载无人机系统三个子系统(飞行器、任务设备、舰面系统)的选型要求，对舰载无人机系统的发展思路提出建议。

The paper makes analysis to finite element Kinetic modal analysis to pipe transporting system , determines frequency feature of 1000 m trial transporting system in cobalt encrustation and 5000m deep seabed mining and transporting system .

对软管输送系统进行了有限元动力学模态分析，确定了1000m钴结壳中试输送系统和5000m深海采矿输送系统的频率特性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐