Coal mine construction has played a very important role in the development of China’s national economy and guarantees the daily life of the people. Therefore, the technical level and safety management of coal mine construction has become the focus of more and more people’s attention. Especially in recent years. The emergence of safety accidents has brought serious threats to the safety of coal mine production personnel. Hence, with the continuous development of science and technology, many innovative technologies have been applied in the current coal mine construction process. In order to ensure the economic and social benefits of coal mine construction, we should create good conditions for construction and implement effective technical management to ensure the standardization of the construction process, thereby reducing the dangers in the coal mine production process and building a safe and reliable high-quality coal mine project.
This book describes the safety construction and management of coal mines from seven chapters, which are detailed and the chapters are comprehensive. It can provide some help to the relevant staff to ensure the smooth progress of the project.
前言
煤矿施工对于我国国民经济的发展起到了非常重要的作用,也实现了对人民日常生活的保障,因此,煤矿施工的技术水平和安全管理成为越来越多人的关注焦点,尤其是近年来煤矿安全事故层出不穷,给煤矿生产人员的生命安全带来了严重威胁。因此,随着科学技术的不断发展,在当前煤矿建设过程中也有很多创新技术得到应用,为了能够保障煤矿建设的经济效益和社会效益,我们应为施工创造良好的条件,并实行有效的技术管理,确保施工过程的规范化、标准化,从而降低煤矿生产过程中的危险,打造安全、可靠的精品煤矿工程。
本书从七章内容对煤矿安全施工与管理进行叙述,内容详细,章节全面,能够为相关工作人员提供一些帮助,确保项目开展的顺利性。
With the continuous development of society, the chemical industry also has certain requirements on its mechanical equipment. The production conditions of chemical industrial products are mostly high temperature, high pressure, complex medium conditions and high technical content, and most of their raw materials and products are highly toxic, flammable, explosive and highly corrosive substances. Chemical production plays an important role in the development of the national economy. Therefore, the performance and reliability of the basic equipment for chemical industry production and operation are very high. Without reliable equipment, the chemical industry has no basis for survival. The reliability of equipment operation determines the normal production of chemical industry. The process of modern industrial production is increasingly moving toward the development direction of large-scale, refined and integrated. The overall operation of a chemical plant is actually an extremely complex and large system. Once one of the links fails and the appropriate solution is not taken in time, a major accident will occur in the entire system. Therefore, it is necessary to strictly control the design process of chemical machinery equipment to ensure the normal and safe operation of each link.
This book briefly describes the chemical equipment materials, centrifugal compressors, turboexpanders, valves, general manufacturing technology of process equipment, heat exchangers, tower equipment, cryogenic liquid storage and transportation equipment.
前言
随着社会的不断发展,化工业对其机械设备也有了一定的要求。化工业产品生产条件多为高温、高压、复杂介质条件,高技术含量的,其原料及产品又大多为剧毒、易燃、易爆、强腐蚀性物质,因为化工生产在国民经济发展中占据着重要地位,所以,对于化工业生产运行的基础设备的性能、可靠性就非常高,离开了设备,或者说离开了可靠的设备,化工业就失去了生存的基础,设备运行的可靠与否就决定了化工业生产的正常与否。而现代化工业生产的过程日益趋向大型化、精细化和集成化的发展方向运行,一台运行着的化工设备,整体实际上是一个极其复杂的大系统。而一旦其中的某一个环节发生故障,或者哪一部分使用不当又没有及时采取合适的解决措施,就会导致整个系统发生重大事故,因此,必须要对化工机械设备设计过程进行严格的控制,确保每个环节的正常安全运行。
本书将通过对化工设备材料、离心式压缩机、透平膨胀机、阀门、过程设备通用制造技术、换热器、塔设备、低温液体储运设备等进行了简单的阐述。
As the main channel to implement Chinese curriculum, Chinese classroom teaching always changes with the change of the nature of Chinese curriculum. Throughout the history of the change of the nature of the Chinese curriculum, whether emphasizing the instrumental or ideological nature, the Chinese classroom teaching always presents the characteristics of unitarity, inculcation and “its emphasis on things and neglect of student”. The new curriculum not only brings a series of innovation of Chinese teaching ideas, but also brings opportunities for the development and utilization of Chinese classroom teaching resources.
The book consists of ten chapters. First, this book introduces the evolution of Chinese classroom teaching and the process of new curriculum reform and the current situation of Chinese classroom teaching design in technical schools under this background. Then, it expounds the foundation of Chinese teaching design, the design of Chinese teaching plan, teaching process, teaching method, classroom control and other teaching process concepts in the new curriculum reform, as well as the design of different teaching contents such as reading, composition, listening and speaking and extracurricular activities. This book adheres to the principle of combining theory with classroom practice to provide more practical guidance books for Chinese classroom teaching in various vocational and technical schools in China, and makes contributions to the vigorous development of China's educational career.
前言
语文课堂教学作为实施语文课程的主渠道,其面貌总是随着语文课程性质的变化而改变。纵观语文课程性质变化的历史,无论是强调工具性还是思想性,语文课堂教学总是呈现单一、灌输和见物不见人的特征。新课程带来一系列语文教学理念的革新也为语文课堂教学资源的开发和利用带来了机遇。
本书共十章,开篇介绍了语文课堂教学的演变与新课程改革进程及此背景下技校语文课堂教学设计现状,后分别阐述语文教学设计基础、新课程改革中语文教案、教学过程、教学方法、课堂调控等教学过程理念的设计,以及阅读、作文、听说与课外活动等不同教学内容的设计。本书坚持理论联系课堂实践的原则,为我国当前各中职技校的语文课堂教学提供了更切实合用的辅导书籍,为我国教育事业的蓬勃发展做出了贡献。
People are the source of national strength, food is the paramount necessity of people, and food safety is the top priority. Food is indispensable to people every day. Therefore, food safety must be one of the most concerned issues in the society. In recent years, domestic media have reported a large number of food safety incidents, including the melamine in Sanlu milk powder, Sudan in KFC food, iodine excess of nestle milk powder, Haagen-Dazs incident and so on, which have aroused high attention from all sectors of society. This has triggered doubts and reflections on China's food safety management mechanism. It involves the long-term supervision function of relevant functional departments, situation assessment and emergency response ability, media supervision and control, incident responsibility tracing, popularization of public food safety knowledge, and connection and communication with international food safety standards. These questions must be addressed in a positive, efficient, scientific and responsible manner within a short period of time. These events triggered our thinking on the establishment and improvement of China's food safety crisis management system. The purpose of this book is to explore how to improve the ability of food quality testing and management in China.
前言
国以民为本,民以食为天,食以安为先。食品是人们每日都不可缺少的,因而食品 安全必定是社会最为关注的问题之一。近年来,国内媒体相继报道了大量食品安全事件,包括三鹿奶粉添加三聚氰胺、肯德基的苏丹红、雀巢奶粉的碘超标、哈根达斯的“黑作坊”事件等,均引起社会各界的高度关注,由此引发了对我国食品安全管理机制的质疑和反思。其中牵涉相关职能部门的长效监管职能、事态评估及应急反应能力、媒体监督与管控、事件责任追查、民众食品安全知识普及、与国际食品安全标准的衔接与沟通等多方面相互交叉的问题,且这些问题均须在短时间内以积极、高效、科学、负责任的方式体现出工作效果,这引发了我们对建立、完善我国食品安全危机管理体系的思考。本书的研究目的在于探讨如何提高我国食品质量检测与管理能力。
Water supply and drainage project plays an important role in the production and life of urban residents and is one of the important facilities to ensure the normal operation of the city. The quality of construction is closely related to urban life. With the continuous advancement of urbanization, China’s water resources are becoming increasingly scarce. Therefore, the construction quality of the water supply and drainage project must be guaranteed to achieve the maximum water-saving effect. The quality of the construction of the water supply and drainage project not only affects the normal use, but also has serious water waste. So, it is necessary to do a good job in all aspects of project management. The main function of the water supply and drainage pipeline is not only to collect and transport precipitation, domestic sewage and industrial wastewater generated by the city, but also to create a stable and comfortable living environment for the people living in the city, maintain the ecological balance, and ensure the sustainable development of the city’s economy and environment. However, the water supply and drainage system has its own particularity. Relative measures should be taken during construction. Because most of the pipe network is buried deep underground, it is difficult to find and deal with the problems in time. Therefore, the construction management and project quality management of the water supply and drainage project need to be scientifically managed and strictly monitored.
This book will elaborate on the utilization and protection of water resources, overview of water supply and drainage project, water supply and drainage pipe network, water intake project, water conveyance and distribution project, water treatment project, sewage treatment project, and the application of BIM technology in building water supply and drainage engineering.
前言
给排水工程在城市居民生产生活中具有重要作用,是保障城市正常运转的重要设施之一,其施工的质量与城市生活息息相关。随着城市化建设的不断推进,使得我国水资源日益紧缺,因此在给排水工程施工时一定要保证给排水工程的施工质量,保证其达到最大节水效果。给排水工程施工质量的好坏不仅影响到正常使用,更存在严重的水资源浪费现象,因此需要做好工程各方面的管理工作。给排水管道的主要作用不仅是收集并输送城市产生的降水、生活污水和工业废水,还能为生活居住在城市的人群创造一个安稳舒适的生活环境,维护生态的平衡,确保城市经济和环境的可持续发展。但是,给排水系统具有一定的特殊性。在施工时采取施工相对的措施。因其管网大部分深埋地下,管网问题难以及时发现并进行处理,因此对给排水工程施工管理与工程质量管理需要进行科学管理,严格监控其过程。
本书将对水的利用与水资源保护、给水排水工程概述、给水排水管网、取水工程、输水与配水工程、给水处理工程、污水处理工程,以及BIM技术在建筑给排水工程中的应用等方面进行阐述。