化学学科的一个主要内容就是研究世界上各种物质的性质和它们的变化,目的在于认识和改造客观事物,使之为人类服务。我们要研究利用自然界已经有的,但是当代合成化学的主要任务是合成自然界没有的、具有更好性能的物质和材料。对我国社会主义建设的需要来说,材料的研究和发展是事关农业、工业、国防和科学技术现代化的一件带有普遍性和根本性的大事。无机材料(包括传统的 A major part of chemistry is to study the nature of the various substances in the world and their changes, with the aim of recognizing and transforming objective things and serving them for humankind. We have to study the use of nature already exists, but the main task of contemporary synthetic chemistry is to synthesize substances and materials with better properties that nature does not have. For the needs of our country’s socialist construction, the research and development of materials is a universal and fundamental event concerning the modernization of agriculture, industry, national defense and science and technology. Inorganic materials (including traditional ones