By using system vicissitude theory we can construct the general vicissitude theory model of our country accounting system. 摘要运用制度变迁理论,可以构建我国会计制度变迁的一般理论模型。
Based on the perturbation theory, a theoretical model for chainlike molecules is established. 对链状分子体系用微扰理论建立了理论模型。