IEC 63044 Series Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - 包含全部5份最新英文标准文件.7z

ISO 20140 Series Automation systems and integration — Evaluating energy efficiency and other factors of manufacturing systems that influence the environment.7z

UL+ISO standard for unmanned aircraft systems(UAS).7z

ISO IEC IEEE 29119 Software and systems engineering — Software testing（软件和系统工程 - 软件测试）.7z

IEC 62040 Series Uninterruptible power systems (UPS)- 包含全部5份最新英文标准文件_.7z

ISO IEC 17021(Series) Conformity assessment — Requirements for bodies providing audit and certification of management systems -包含全部12份标准文件.7z

ISO 16484 Series Building automation and control systems (BACS) - 楼宇自动化和控制系统（BACS）- 包含全部6份最新英文版标准文件_.7z

IEC 61511 Series - Functional safety – Safety instrumented systems for the process industry sector(包含全部5份标准文件）.7z

IEC 61800 Series Adjustable speed electrical power drive systems - 包含全部20份最新英文版标准文件.7z

Over 200,000 people have been grounded in good database design practice by reading Database Systems. The new edition of this bestseller brings it up to date with the latest developments in database technology and builds on the clear, accessible approach that has contributed to the success of previous editions. A clear introduction to design, implementation and management issues, as well as an extensive treatment of database languages and standards, make this book an indispensable complete reference for database students and professionals alike