给水

The thesis expatiate on the thought base,principle,design process and calculate technique that used in the foundation of the service pipe network geography information manage system,and set up each module's math model.It handles the network's graphics and words in a whole using the geography information system technique.That will make the water pipe network management easy, facilely and exactly.

本文详细阐述了建立城市给水管网地理信息管理系统的思想基础、遵循原则、设计过程以及采用的计算技术，对管网各功能模块建立了数学模型，运用地理信息技术对城市给水管网进行了图形和属性数据一体化的操作，从而使给水管网的管理更加直观、便利和准确。

And tower water supply drainage work is compared with in general multilayer building and low tier of buildings water supply drainage work , fundamental theory and reckoning are identical in the field of some , tier of numbers are many because of the tower , the building altitude is big , the building function is broad , building structure is complicated but, what be accepted the external world condition restricting waits, tower water supply drainage work is listed in disregarding being to be still extent on technology depth,have exceeded low tier of buildings water supply drainage work category, The number having the following few characteristics tower water supply draining off equipment is many and, instant the source of water that the rate of flow giving a water yield and draining away water depends on , rational water supply of economy sewerage form and , breathable appropriate treatment draining off pipeline problem and, to ensure that water supply safety is reliable , the administration draining away water unobstructed and defending is convenient.

高层建筑给水排水工程与一般多层建筑和低层建筑给水排水工程相比，基本理论和计算方法在某些方面是相同的，但因高层建筑层数多、建筑高度大、建筑功能广、建筑结构复杂，以及所受外界条件的限制等，高层建筑给水排水工程无论是在技术深度上，还是广度上，都超过了低层建筑物的给水排水工程的范畴，并且有以下一些特点高层建筑给水排水设备的使用人数多，瞬时的给水量和排水流量靠的水源，以及经济合理的给水排水系统形式，并妥善处理排水管道的通气问题，以保证供水安全可靠、排水通畅和维护管理方便。

According to the characteristics of the fire control water supply system of railway goods yard , the several ways used for the system are determined under general circumstances with the examples, the best way for the system is the temporary high pressure fire control water syetem.

根据铁路货场消防给水特点，确定一般情况下所采用的铁路货场消防给水系统的几种方式，并举例论证铁路货场消防给水系统最好采用临时高压消防给水系

This paper introduces the causes of noise generation and propagation of indoor water supply and sewerage system , probes into the corresponding solution of controlling indoor noise, mainly discusses water pump house oscillation reducing and noise isolating, selection of drain pipe material and control of velocity and pressure of water supply pipe.

介绍了建筑室内给水排水系统噪声产生与传播的原因，探讨了控制建筑室内噪声的相应对策，重点论述了给水泵房的设置、水泵机组的减振隔声、排水管材的选择、给水管道流速和压力的控制等内容。

An analysis on the investment and energy consumption of the water supply modes by roof water tank and variable velocity variable frequency pump was emphasized with an engineering example.

通过工程实例，重点分析了屋顶水箱给水方式和变频泵给水方式下给水系统的投资和能耗情况，论证了屋顶水箱给水和变频泵给水相结合是高层住宅小区最佳的给水方式。

The study shows that through choosing the characteristics of the feedwater valve and throttle valve in the equipment, the shifting run of turbine pump, can realize the pressure drop of the feedwater valve invariableness, which can reduce the energy loss and improve the control characteristics of the feedwater system.

本文的研究表明，在核动力装置二回路给水系统中，通过选定节流阀和给水阀特性，由水泵变速运行可以实现给水阀两端的压差恒定，大大改善了给水系统的控制特性。

Though studying the rate of permeable salt of two-pass reverse osmosis system,the effects of feed water pH value, permeant flux ,feed water conductivity on the permeable salt rate of the system are analyzed and the change regular of permeable salt rate along with the three factors is summarized.

以二级反渗透系统的透盐率为研究对象，分析了给水pH值、产水通量、给水电导率对系统透盐率的影响，总结了透盐率随三个因素的变化规律，比较得出了其中给水pH值对透盐率的影响最大的结论，且给水pH值为弱碱性条件下的透盐率最低

This paper introduces the optimum selection on pipe diameter of feed water system for Zhejiang Guohua Ninghai Power Plant PhaseⅡ 2×1 000 MW Extension Project.

介绍了浙江国华宁海电厂二期2×1 000MW扩建工程给水系统管径优化的情况，对高压给水管道管径优化进行了详细的计算和分析，在对给水系统管径的多方案进行技术经济比较后，给出了优选出的低压给水管道、高压给水管道以及给水再循环管道的规格。

In the design of fire water supply system in flight area of new Baiyun International Airport,explanation was given to the selection of pipe materials,anticorrosion of pipeline,and setting up of fire hydrant chamber,valve chamber,and water hydrant chamber,as well as the special treatment and notes for pipeline running through runway.

飞行区内的消防给水系统设计与一般的设计存在着很大差别，结合广州新白云国际机场飞行区的消防给水系统的设计，对消防给水管道材质的选择，管道防腐，消火栓井、阀门井、给水栓井的设置，以及管道穿越跑道时的特殊处理和注意事项进行了阐述。

Based on the ana1yse of the way of the water pipe network's management and the difficult problem which exist in the course of running water pipe network It presents the collectivity project of the city service pipe network Geography information manage system and estab1ish the waterpipe network's basic data-base,and conform afresh the network data by the mode of data-base organization. Then on the base of it,open out the water pipe networks graphics show and edit,hydraulic simulation module,disposal accident module and data query andanalyse module and set up the geography information system.it will exert the network's data-base and computer effect on the city water management.

在对目前给水管网管理方式以及管理过程中碰到的问题进行分析的基础上，给出了城市给水管网地理信息管理系统的总体方案和详细设计，同时建立了给水管网基础数据库，依照数据库的组织方式对管网数据进行管理、编辑和分析，并在此基础上，开发了城市给水管网图形显示、图形编辑、水力模拟、管网事故处理、管网数据查询分析和管网数据专题图等功能模块，建立了城市给水管网地理信息系统，以充分发挥管网数据和计算机技术在城市供水管理中的作用。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。