在日常生活、机械生产、仪器仪表修理和汽车修理中，常常大量使用易燃或可燃性化合物作为清洗剂，进行清洗。但由于一些清洗作业人员缺乏应有的消防安全知识，不懂得如何做好清洗安全防护工作，往往引发火灾爆炸事故，给人民的生命财产造成重大损失。 实例一：１９９３年１２月 In daily life, mechanical production, instrumentation repair and auto repair, often flammable or combustible compounds are often used as cleaning agents for cleaning. However, some cleaning workers lack the knowledge of fire safety and do not know how to do the cleaning and safety protection. They often cause fire and explosion accidents and cause heavy losses to people’s lives and property. Example one: December 1993