Municipal Engineering refers to the construction of municipal facilities. Municipal facilities refer to all kinds of buildings, structures, equipment, etc. which are set up within the planning and construction scope of urban areas, towns (townships) and provide residents with paid or free public products and services based on the responsibilities and obligations of the government. Municipal works mainly include urban roads, bridges, water supply and drainage, sewage treatment, urban flood control, gardens, road greening, street lamps, environmental sanitation and other urban public utilities. The project management of municipal engineering in China has gone through the course of more than 20 years, forming a project management mechanism with modern management significance. But there are still many problems and deficiencies, especially in recent years when China’s market economy is gradually improving, it is more necessary to innovate and explore the modern construction project management mode with Chinese characteristics in order to meet the needs of the development of market economy.
      This book mainly describes from two parts, the first part mainly describes the construction technology of road engineering, and the second part mainly describes the municipal engineering project management, hoping to help the work of relevant staff.

前 言

市政工程是指市政设施建设工程。市政设施是指在城市区、镇（乡）规划建设范围内设置、基于政府责任和义务为居民提供有偿或无偿公共产品和服务的各种建筑物、构筑物、设备等。市政主要包括：指城市道路、桥梁、给排水、污水处理、城市防洪、园林、道路绿化、路灯、环境卫生等城市公用事业工程。我国市政工程的项目管理已走过了二十几年的历程，形成了具有现代管理意义的项目管理机制，但还存在很多问题和不足，特别是在近几年我国市场经济逐步完善的情况下，更需要不断创新，探索有中国特色的现代建设工程项目施工管理模式，以适应市场经济发展的需要。
        本书主要从两篇内容进行叙述，上篇主要对道路工程类的施工技术进行阐述，下篇主要对市政工程项目管理进行说明，希望能够有助于相关工作人员的工作进行和开展。

Human resource management is an important part of modern enterprise management, which plays an important role in promoting the overall management level and economic benefits. In the post crisis era, the development and management of human resources is an important means for enterprises to cope with more and more fierce market competition, especially in the global integrated economy based on the development of science and technology and the progress of information, it plays a great role.
      This book consists of seven chapters. The first part of the introduction explains the concept, current situation, development trend of human resource management and the relationship with enterprise construction. The last six chapters focus on the theory and content of human resource management, enterprise human resource management, enterprise organization, culture and information construction in order to provide theoretical guidance and help for human resource management, enterprise modernization and sustainable development.

前 言

企业的人力资源管理工作是现代企业管理中的一项重要的组成部分，对企业的整体管理水平和经济效益有着重要的促进和推动作用。对于后危机时代来讲，其人力资源的开发和管理是企业应对愈来愈激烈的市场竞争的重要手段，尤其是在以科技的发展和信息化的进步为基础的全球一体化经济中，更是发挥着巨大的 意义和作用。
       本书共七章，开篇绪论部分就人力资源管理概念、现状、发展趋势及与企业建设的关系进行了阐释说明，后六章分别对人力资源管理理论、工作内容，企业人力资源管理以及企业组织、文化与信息化建设内容进行重点论述与研究，以期为我国人力资源管理、企业现代化建设及可持续发展提供理论指导与帮助。

With the great changes in the internal and external environment of the development of enterprises, the ideology, morality and values of Party members, cadres and employees have become increasingly multi-level. Ideological and political work is an important and powerful guarantee for the survival and development of enterprises. A strong ideological and political work is the ideological basis and guarantee for uniting the people of the whole country to smoothly promote reform, ensure social stability and promote economic development. In the new era of reform and opening up and the development of socialist market economy, great changes have taken place in the environment, content, channels and objects of ideological and political work in China. The situation of ideological and political work is more complex, the task is more arduous, and the work is more arduous. The traditional ideological and political work has encountered unprecedented challenges. The new situation, new tasks and the current situation of ideological and political work require all kinds of social organizations, including enterprises, to strengthen and improve ideological and political work. We must analyze the objective environment and basic characteristics of the ideological activities of cadres and staff in enterprises under the new situation from the perspectives of international and domestic, history and reality, the present and the long-term, and correctly examine and solve those problems. Some important theoretical and practical problems that affect the ideological activities of cadres and staff in enterprises provide us with a more practical way to improve the ideological and political work in the new era.
      Only by deep thinking, can we give full play to the positive role of ideological and political work in promoting the reform, stability and development of enterprises; only by making efforts to innovate, can we open a new situation of ideological and political work in enterprises in the period of innovation. Due to the limited level, there are inevitably deficiencies and inadequacies in the book. Please give your valuable opinions in the use process.

前 言

伴随着企业发展内外部环境所发生的巨大变化，企业党员干部、职工的思想、道德和价值观念变得日益多层次化。思想政治工作是企业生存与发展重要而有力的保障。坚强有力的思想政治工作，是团结和凝聚全国人民顺利推进改革、保证社会稳定、促进经济发展的思想基础和保证。在改革开放和发展社会主义市场经济的新时期，我国思想政治工作的环境、内容、渠道和对象都发生了很大的变化，思想政治工作面临的形势更复杂、任务更繁重、工作更艰巨，传统的思想政治工作遇到了前所未有的挑战。新形势、新任务以及思想政治工作的现实状况，要求社会各种组织包括企业在内，都必须大力加强和改进思想政治工作，必须从国际和国内、历史和现实、眼前和长远的角度，深刻分析新形势下广大企业干部职工思想活动的客观
环境及基本特点，正确审视和解决那些影响企业干部职工思想活动的重大理论问题和现实问题，为我们改进新时期的思想政治工作，提供一个比较切合实际的思路。
      只有深入思考，才能更好地发挥思想政治工作在促进企业改革、稳定和发展中的积极作用；只有努力创新，才能开创新时期企业思想政治工作的新局面。由于水平有限，在书中不可避免地存在着不足、不妥之处，恳请读者在使用过程中提出宝贵的意见。

With the rapid development of China’s economy, the scale of construction projects is expanding day by day, showing the trend of vigorous development. From the perspective of construction industry, improving the technical level and professional skills of construction personnel can effectively improve product quality and social benefits. Improving their own technical level and professional skills, especially the operation level of some key technologies, can greatly improve labor productivity. At the same time of reducing labor intensity, it can speed up the project progress and reduce the occurrence of accidents. Therefore, the improvement of professional level of construction personnel is the key point in the construction industry. Due to the rapid development of the domestic construction market, new materials continue to emerge, and quality problems follow. As the saying goes, engineering quality is a hundred year plan, which is not only related to the healthy, sustainable and stable development of national economy, but also related to the safety of people’s life and property. Therefore, quality safety and equipment maintenance are our principles.
      The relevant national departments attach great importance to the construction engineering, and have revised and updated the relevant industry codes and standards. For this reason, we have compiled the monograph “Installation and Maintenance of HVAC Equipment” according to these codes and standards and combined with practical work experience. But in recent years, with the rapid development of the domestic construction market, new materials, new processes and new technologies continue to emerge. But behind the development and innovation, the quality problem is prominent. Quality problems are often developed due to small mistakes or mistakes in key technologies. As the saying goes, engineering quality has a long history. It is not only related to the healthy, sustainable and stable development of the national economy, but also related to the safety of people’s lives and property. Therefore, we must adhere to quality first.

前 言

随着我国经济的飞速发展， 建设工程的规模日渐扩大， 呈现出蓬勃发展的趋势。从建设行业的角度来说，提高施工人员的技术水平和专业技能，可以有效的提高产品质量和社会效益。提高自身的技术水平和专业技能，特别是一些关键技术的操作水平，可以大大提升劳动生产率、在降低劳动强度的同时可以加快工程进度、减少事故的发生。因此，施工人员的专业水平提高是建设行业中的重点。由于国内建筑市场发展迅速，新型材料不断产生，质量问题随之而来。俗话说工程质量百年大计，它不仅关系着国民经济的健康、持续、稳定的发展，更关系着人民生命、财产的安全，因此，质量安全与设备维护是我们的坚持原则。
        国家相关部门对建筑工程十分重视，陆续修订并更新了相关的行业规范和标准。为此我们根据这些规范和标准，结合实际工作经验编写了《暖通空调设备安装与维护》这一专著。但是近几年来，国内建筑市场发展迅速，新材料、新工艺、新技术不断涌现。但是在发展与创新背后，质量问题凸显出来。质量问题往往都是由于细小差错或关键技术的失误发展而成，俗话说工程质量百年大计，它不仅关系着国民经济的健康、持续、稳定的发展，更关系着人民生命、财产的安全，所以我们必须坚持质量第一。

With the strong support of China, the air conditioning industry has gradually realized the automatic control of the central system. Through the central system of air conditioning, users can easily complete the shift, switch and other work of air conditioning, which not only makes the HVAC system safer, but also facilitates the management of the air conditioning industry.On the other hand, energy conservation and emission reduction is an important foundation for the development of our country. As an important energy consuming industry, air conditioning industry has a great relationship with the emission of carbon dioxide and other greenhouse gases. Through the automatic air conditioning system, air conditioning can realize self-operation and self-control, so as to effectively reduce the content of excess greenhouse gases in the environment.
     However, under the background of the development of air-conditioning industry in China, the popularity of automatic air-conditioning system is not high, and the price in the market is relatively high. In addition, among users, the use method of automatic air-conditioning system has not been popularized in place. Even if users purchase HVAC with automatic control system, in actual life, they do not have their own expectations for users effect. Therefore, the innovation of HVAC industry should not only stay in the technical level, but also in people’s ideological and cognitive views and propaganda efforts.
      Therefore, this book describes the installation and automatic control of HVAC from seven chapters, hoping to have some help.

前 言

空调行业通过我国的大力支持，已经逐渐实现了中央系统的自动化控制，通过空调中央系统，用户可以便捷地完成空调的换挡、开关等工作，不仅让暖通系统更加的安全，也方便了空调产业的管理工作。从另一个方面来说，节能减排是我国国家发展的重要基础，空调产业作为重要的耗能产业，和二氧化碳等温室气体的排放有很大的关系，通过空调自动系统，可以让空调实现自我操作，自我控制，从而有效降低环境内多余温室气体的含量。
      但是， 在现在我国空调产业发展的大背景下， 空调的自动系统普及程度并不高，在市场上的价格也相对较高，加上在用户中，空调自动系统地使用方法也没有普及到位，即使用户购置了含有自动控制系统的暖通空调，在实际的生活中，对用户也没有起到本身预期的效果。所以暖通行业的创新，不应该仅仅停留在技术层面，还应该在人们的思想认知观和宣传力度方面进行合理的创新。
      因此，本书对暖通空调安装与自动化控制的阐述从七章内容进行，希望有一定的帮助。