“全国化学品安全卫生知识有奖问答”讲座第四讲化学品危害的预防与控制随着化学工业的发展，化学品的种类和数量不断增加，由此引发的事故日益增多，危害程度越来越大。但化学品却与人类的生活密切相关，几乎每一个人都在直接或间接地与化学品打交道。因此，如何控制化学... Lecture on “Questions and Answers on the National Chemical Safety and Health Knowledge” Lecture 4 Prevention and Control of Chemical Hazards With the development of the chemical industry, the types and quantities of chemicals continue to increase, resulting in more accidents and more harmful effects The bigger But chemicals are closely linked to human life, and almost everyone is dealing directly or indirectly with chemicals. So how to control chemistry ...