人们在研究任何一门学科,或研究某一科研题目时,都很想了解它的发展历史.系统地研究过去的记载不仅是引人入胜的,而且也是有实际价值的.如果忘记了过去的有关知识和实验动态,有可能使某些错误重犯,或造成研究内容上的重复,造成人力和物力的浪费.大气腐蚀是金属腐蚀中最普遍的一种类型.据估计金属结构在大气条件下使用的约 When people study any subject or study a certain subject, they all want to know its history.It is not only attractive but also practical to study the past records systematically.If you forget the past knowledge And experimental dynamics, it is possible to make some mistakes repeated, or cause duplication of research, resulting in a waste of human and material resources.Corrosion is the most common type of metal corrosion.It is estimated that the use of metal structures under atmospheric conditions approximately