确保水喷淋系统效率一百多年来跟踪调查记录表明：自动喷水灭火系统是保证人身和财产安全免于火灾危害的有效手段。全世界每年有４５００万只以上的喷头用于实际工程中，以保证人身和财产安全。更有意义的是，发展中国家的喷头使用量约占该市场的４０％。英国目前每年安装... To ensure that the efficiency of sprinkler systems has been tracked over more than one hundred years, the investigation records show that: Automatic sprinkler systems are an effective means to ensure the safety of people and property from fire hazards. Every year, more than 45 million sprinklers are used in practical projects worldwide to ensure personal and property safety. What’s more significant is that the use of showerheads in developing countries accounts for about 40% of the market. The UK currently installs annually...