本文以随机过程中的一类特殊的Markov链（Harris常返Markov链）为工具，研究离散事件动态系统（DEDS）中的典型情况之一：带有缓冲器的串行生产线．求得了各缓冲器中产品数的联合稳态分布，产品在各台机器上受阻时间的联合稳态分布，以及受阻时间的强大数定律和产品在各台机器加工完时刻的极限行为．

The aim of the present paper is to investigate the tandem production line with buffers. By using Harris Markov chain we get the stationary joint distribution of product numbers in each buffer, the stationary joint distribution of blocking time of each product at each machine,and the law of strong large number of blocking time.