在科学技术和生产中,化学起着重要的作用。在人类所关心的能源、粮食、环境、人口和资源等五大问题中,都离不开化学。随着现代科学技术和生产的发展,化学与其他学科之间的相互渗透与日俱增,出现了许多交叉和边缘学科,诸如地球化学、石油化学、计算化学、地球植物化学、宇宙化学、石油工程化学等. Chemistry plays an important role in science, technology and production. Among the five major issues of human concern such as energy, food, environment, population and resources, we can not do without chemistry. With the development of modern science and technology and production, the mutual penetration between chemistry and other disciplines is increasing day by day. Many cross-cutting and edge disciplines have emerged, such as geochemistry, petrochemistry, computational chemistry, earth phytochemistry, cosmic chemistry, petroleum engineering chemistry, etc. .