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The main objective of this dissertation was to develop methodologies with capability of engineering application for simulating flow in fractured rock using discontinuum models. The study work includes three parts. In the first part, numerical methodology of three-dimensional discrete fracture network model casing on hybrid BEM-channel was presented, and the technique for improve the model's computing efficiency was also studied. Firstly in this part, computer simulation methodology based on the Baechermodel for generating network of discrete fractures was presented, which includes the follow details: probability distributions of fracture density,orientation, trace length, size, and aperture and estimation of their statistical parameters; stochastic models of fracture network; Monte-Carlo's simulation method; numerical simulation procedure and technicality.

给出了离散裂隙网络模型所依据的基本假定；发展了基于Baecher模型的离散裂隙网络计算机随机生成技术：详细地推导了单裂隙渗流和多裂隙相交网络渗流的边界单元法公式，发展了离散裂隙网络中稳态渗流的边界元数值技术，并且讨论了相关的具体数值技术细节，如角点的处理方法，单元的自动剖分等：描述了混合边界元—管流模拟方法及其数值实现；研究了裂隙网络的简化方法，并针对裂隙网络边界元法的特点提出了一种改进的分块三角分解法。

It is a process control and dispatching automation system based on computer.

SCADA系统是以计算机为基础的生产过程控制与调度自动化系统。

Based on the computer simulation, the dither circuit giver by literature is improved.

在仿真基础上对文献所介绍的Dither电路进行了改进，并做了实验验证。

The research goal of Document Image Processing is to extract necessary information from paper-based document, or to use computer to simulate human capability of DIP.

文档图像处理(DIP—Document Image Processing)的研究目的就是要利用计算机从文档图像中获取需要的信息，或者说，是要让计算机模拟人类自身对文档图像进行理解。

With the rapid development of eletronics and computer technology,no invasion blood pressure instrument based on oscillometric method begin to come out. My design can exactly complete pulse wave signal examination and withdraws the electric circuit after studying domestic and foreign product,and understanding pulse wave signal characteristic well.

本设计在充分研究国内外已有产品、构思以及充分了解脉搏波信号特点的基础上，经过反复实验能够设计出准确可靠的脉搏波信号的检测、提取电路。

A new scheme of double loop feedback computer control system, which is based on virtual instruments technology, is put forward to improve control performance.

随着数字电子技术、计算机控制技术的迅速发展，数字控制系统的应用越来越广，已成为各类控制系统发展的趋势。

As the high-speed development of computer technology and wide application of the Geographical Information System,it is essential to develop a drainpipe management information system based on GIS, which can meet the needs of city planning, projecting and managing departments.

随着计算机技术的飞速发展和地理信息系统技术的广泛应用，利用GIS技术建立的排水管网管理信息系统，能够满足城市规划部门、设计部门和管理部门的需要。

In addition, this drawing board is based on the computer network online painting system.

此外，该画板是基于计算机网络的在线画图系统。

The Periscope Drawtube will be bent because of the water resistance in sailing and this bend will cause the error of star measurement. Due to its especial structure, contactless measurement is the only way to measure its bend degree. First this paper introduces the method by linear array CCD based on structure and light path; Second it expatiates linear array CCD work principle and driving scheduling with example of TCD1501C and the driving circuit by CPLD. The output signal of linear array CCD includes common disturbance so the differential amplifier is needed. In order to make the signal adapt to computer processing, a threshold circuit with Schmitt characteristic and the data process following threshold are given. At last, some key problems in application are given.

潜艇潜望镜的镜筒在航行时受到水的阻力会产生弯曲变形，这种变形会造成潜艇对星体测量的误差；由于镜筒结构的特殊性，对其弯曲程度的测量只能采用非接触方法；首先从结构和光路方面介绍采用线阵CCD作为检测元件实现对镜筒弯曲程度的测量；其次以东芝公司的线阵CCD（TCD1501C）为例阐述了其工作原理及驱动时序的控制要点，并介绍了基于可编程逻辑器件的线阵CCD的驱动电路；线阵CCD输出的信号中含有共模干扰，必须采用差分放大器将其抑制；为将信号转化为适合计算机处理的数字信号，文中给出了有一定实用价值具有施密特特性的二值化处理电路及二值化后的数据处理过程；最后阐述了在实际使用中的一些关键问题。

Intelligent design system of heavy off road vehicle driving axle is a computer network based CAD system using the concept of concurrent engineering, and design for assembly methodology.

该系统是一个运用并行工程思想，借助于面向装配的设计方法，基于计算机网络的智能CAD系统。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。