前言随着科技的进步和经济的发展带来了整个社会生活水平的提高,人们生活不再仅仅局限于传统的衣、食、住、行,对周围的居住环境及环境安全越来越重视,安全技术防范作为保护人民生命和财产的重要工具也越来越被广大消费者所重视。 Preface With the advancement of science and technology and the economic development brought about by the improvement of the living standards of the whole society, people’s life is no longer confined to the traditional clothing, food, shelter and transportation. It has paid increasing attention to the surrounding living environment and environmental safety, Security technology as an important tool to protect people’s lives and property is also increasingly valued by the vast number of consumers.