similar theory的用法和样例：
例句
- Preferences Similarity Theory is the theory that explains the impact of inter-country trade volume from the perspective of demand.
摘要需求偏好相似理论是从需求角度来解释影响国家间贸易额大小的理论。 - Based on the principles of similarity theory, this paper discusses the process of system simulation and develops the basic procedure of system simulation.
应用相似理论的基本原理研究系统仿真的过程，提出了基于相似理论的系统仿真的基本方法和步骤。
