With the acceleration of the urbanization process, serious pollution problems have appeared in the urban environment, and water pollution has become a key issue of people’s attention. The treatment of urban water pollution in our country is still in its infancy. Various sewage treatment systems are lagging behind, and the sewage treatment facilities cannot give full play to their benefits. These problems have become common problems in sewage treatment. The management of the operation of the sewage treatment system is the basic guarantee for the normal operation of the treatment system.
      Nowadays, the country’s requirements for the construction of the ecological environment are becoming more and more stringent, and the pressure of market competition is increasing. In order to continuously enhance the competitiveness of sewage treatment plants, ensure that pollutants meet the discharge standards, and achieve long-term environmental and social benefits, we should strengthen the daily operation management in the process of urban domestic sewage treatment, so as to reduce costs and increase efficiency.
     The shortage of water resources is a serious problem faced by many places. Therefore, in our lives, people vigorously advocate saving water resources, improving water resources utilization efficiency, and developing water-saving industries, so as to build energy-saving cities. Improving the utilization efficiency of water resources requires not only the innovation of various management systems and the improvement of water resources management systems, but also the establishment of a reasonable water resources management system. We must strengthen the treatment and management of sewage, increase people’s enthusiasm for saving water and preventing water pollution, vigorously promote water-saving technology, and strive for everyone to contribute to the rational use of urban water resources and the beautification of the urban environment.

前 言

随着城镇化进程的加快，导致城市环境出现了严重的污染问题，水资源污染成为人们关注的重点问题。就我国城市水污染的处理而言，尚且处于起步阶段，各种污水处理系统比较滞后，处理污水的设施也不能更好的发挥其应有的效益，这些问题成为污水处理中的共性问题。对污水处理系统的运行情况进行管理是确保处理系统正常运行的基础保障。
        如今，国家对生态环境建设要求日益严苛，且市场竞争的压力越来越大，为了不断增强污水处理厂的竞争力，确保污染物达标排放，实现长久的环保效益和社会效益，应在城镇生活污水处理的过程中加强日常运行管理，从而降本增效。
        水资源短缺是很多地方面临的严重问题，因此，在我们的生活中人们大力倡导节约水资源，提高水资源的利用效率，发展节水型产业，从而更好的建立节约型的城市。提高水资源的利用效率不仅需要进行各种管理制度的创新，改善水资源的管理体系，此外，还需要建立合理的水资源管理体制，加强对污水的处理和管理，提高人们节约用水和防治水污染的积极性，大力推广节水科技，争取每一个人都能够为城市水资源的合理利用和城市环境的美化做贡献。

With the development of the times and the advancement of science and technology, our country’s economy has continued to grow. At present, the introduction of information technology has made the economic activities of enterprises present the characteristics of digitization and networking. There are many new media spaces in the market, such as virtual capital market, virtual bank and so on. Compared with the traditional enterprise financial management mode in China, the enterprise financial management mode based on information technology is more suitable for the development of the current market. Accordingly, the traditional business operation mode of enterprise financial management will formally withdraw from the historical stage of financial management.
      The advent of the big data era has changed the business development model of most companies to a certain extent. The working mechanism of traditional enterprise financial management is too old and backward, which cannot meet the development requirements of the current big data era. The current market competition is becoming more and more fierce. Enterprises need to make full use of the reform and innovation opportunities brought by the changes of the times to innovate the business philosophy of the enterprise, optimize the management model of the enterprise, and better promote the development of the enterprise. And a large number of information-based finance and information-based software will attract people’s attention and become an indispensable part of current enterprise financial management. To this end, the book “Financial Management and Information Technology” has launched a more in-depth discussion on financial management under the background of modern informatization. The author analyzes the specific problems existing in the current financial management of enterprises, and studies the actual requirements of enterprise financial management innovation under the background of the information age. The transformation strategy of enterprise financial management information will become the key reform direction of the current enterprise financial department.

前 言

随着时代的发展，科技的进步，我国经济发展水平处于一个持续增长的阶段。当前，信息化技术的引入，使得企业经济活动朝着数字化、网络化方向靠拢。市场上出现了许许多多全新的媒体空间，较为常见的有虚拟资本市场、虚拟银行等等。同我国传统的企业财务管理模式相比，以信息化技术为转型基础的企业财务管理模式更加适应当前市场的发展，相应的传统的企业财务管理中的商业运转方式将会正式退出财务管理的历史舞台。
        大数据时代的来临在一定程度上改变了大部分企业的经营发展模式。传统的企业财务管理工作机制过于陈旧且落后，无法满足当前大数据时代企业的发展要求。当前市场竞争愈发的激烈，企业需要充分利用时代改变带来的改革创新机会，对企业的经营理念进行创新，优化企业的管理模式，更好地促进企业的发展。而一大批信息化财务信息化软件将会进入人们的视野，成为当前企业财务管理工作中不可缺少的一部分。为此，撰书《财务管理与信息化技术》对现代信息化背景下的财务管理展开更为深入的探讨，分析了当前企业在财务管理工作中存在的具体问题以及信息化时代背景下对企业财务管理创新的实际要求，相信企业财务管理信息化转型战略将会成为当前企业财务部门的重点改革方向。

Under the promotion of social economy, the new media developed through digital technology, network technology and mobile technology has a huge impact on the traditional media. Accelerating the popularization and application of new media technology and the infrastructure construction of digital radio and television will consolidate and expand the party’s position of public opinion propaganda, improve the quality and level of public service, and promote the vigorous development of related industries. The research on the development and application of radio and television technology in the digital media era highlights the application of innovative technology in the digital media era, and is close to the reality and frontier of the development of digital media technology. This book introduces the basic concepts and technical characteristics of new media technology elements based on digital technology. The content of the book is concise, novel and practical, and the principle is simple in theory and easy to understand.

前 言

在社会经济的推动下，通过数字技术、网络技术以及移动技术发展起来的新媒体对传统媒体产生了巨大冲击。加速进行新媒体技术的推广应用，加快数字化广播电视的基础建设，必将巩固和拓展党的舆论宣传阵地，提高公共服务质量与水平，促进相关产业的蓬勃发展。数字媒体时代的广播电视技术发展与应用研究突出数字媒体时代的创新技术应用，紧贴数字传媒技术发展现实和发展前沿。本书介绍了以数字技术为基础的各新传媒技术要素的基本概念和技术特点。 全文内容精简、 新颖、实用，原理深入浅出，通俗易懂。

With the continuous improvement of science and technology and the wide application of new technology and people’s deep understanding of obstetrics and gynecology diseases, the prevention and treatment of women’s health and obstetrics and gynecology diseases has attracted extensive attention of the society. It is a necessary quality for every gynecologist to know about how to correctly understand obstetrics and gynecology diseases, how to timely and accurately diagnose obstetrics and gynecology diseases, how to treat obstetrics and gynecology diseases scientifically and reasonably.
      With the rapid development of science and technology, the basic knowledge and clinical diagnosis and treatment of obstetrics and gynecology have made great progress, the etiology and pathogenesis have been deeply studied, and the diagnosis and treatment of diseases have also been widely practiced. With the change of medical model and the renewal of traditional medical concept, many diagnosis and treatment methods and principles of Obstetrics and Gynecology have changed with each passing day. Considering this, the writer has compiled the book on the basis of referring to a large number of literature and combining with their own clinical work experience for many years.
      The book has systematically expounded the etiology, clinical manifestations, diagnosis and treatment of obstetrics and gynecology diseases, reflected the new ideas and knowledge of modern clinical practice, and has strong practicability and guidance; with rigorous structure, distinct levels, novel content, high professional degree and strong practicability, it can not only reflect modern clinical experience, but also meet the needs of other clinical workers. Therefore, it can be used as a reference book for staffs at all levels.

Geotechnical Engineering, literally translated as “geological technology engineering”, which is a new technical system established by European and American countries on the basis of civil engineering practice in the 1960s. It is a subject that mainly studies engineering issues of rock mass and soil mass. This book mainly introduces geotechnical engineering and geological exploration technology.
         Engineering exploration technology is an important means of construction engineering exploration, which directly serves foundation and the design of foundation engineering. The use of reasonable exploration methods is the key to ensuring the safety and stability of construction projects and the rationality of technology and economy. The editors and their teaching team summarized years of experience in teaching, scientific research, and practice, based on the principle of equal emphasis on practical technology and theoretical foundation, coordinated the relationship between basic theory and modern technology, and absorbed advanced production equipment and production technology. The editors coordinate the content of each chapter to make it closer to production practice.
      Geotechnical engineering is an interdisciplinary subject, which is widely used in highways, railways, bridges, tunnels, dams, airports, industrial and civil buildings and other fields. On the basis of prerequisite courses such as soil mechanics, foundation engineering and engineering geology, students have a comprehensive, systematic and in-depth understanding of the basic knowledge, theories and methods of geotechnical engineering through the study of this course, so that they can solve the practical problems of geotechnical engineering. On this basis, they can engage in exploration, design and construction of geotechnical engineering, and have certain research and development capabilities.

前 言

岩土工程（Geotechnical Engineering），直译为“地质技术工程”，是欧美国家于 20 世纪 60 年代在前入土木工程实践的基础上建立起来的一个新的技术体系，它主要是研究岩体和土体工程问题的一门学科。本书主要介绍了岩土工程与地质勘查技术。
        工程勘察技术是建设工程勘察的重要手段，直接服务于地基和基础工程设计。采用合理的勘察技术手段是确保建设工程安全稳定、技术经济合理的关键。本书结合了编者及其教学团队的多年教学、科研、实践的经验，以实用技术及理论基础并重为原则， 协调好基础理论与现代科技间的关系， 吸收先进的生产设备和生产工艺，统筹安排各章内容，使教材内容更能贴近生产实践。
        岩土工程是多门学科交叉的边缘学科，在公路、铁路、桥梁、隧道、堤坝、机场、工业与民用建筑等领域广泛应用。在土力学、基础工程和工程地质等先修课程基础上，学生通过本课程的学习，对岩土工程的基本知识、理论和方法有全面、系统和深入地了解， 使之具有解决岩土工程实际问题的能力， 能从事岩土工程的勘察、设计和施工，并具有一定的研究和开发能力。