说明：  连续搅拌反应釜CSTR系统是聚合反应工业中广泛使用的重要系统，它是一个很强的非线性系统，其系统建模、状态估计和实时控制等问题，
(Continuous stirred tank reactor CSTR polymerization system is widely used in industry-critical systems, it is a very strong non-linear system, the system modeling, state estimation and real-time control problems,)