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从并行处理的角度描述了属于粗粒度或中粒度的二种并行结构，将其应用于先进的１０ＭＷ高温气冷堆核电站Ｉ＆Ｃ仪表控制系统中。所谓粗粒度并行结构是指分布于全厂、基于全局数据库概念的令牌总线型ＡＲＣＮＥＴ高速数据干线计算机网络系统。中粒度并行结构是指上述计算机网络的某些节点是基于局部存储共享的多处理机系统。它们均是松散耦合多处理机系统，文中介绍了二种结构在反应堆Ｉ＆Ｃ系统和保护系统中的应用。
From the perspective of parallel processing, two kinds of parallel structures belonging to coarse-grained or medium-grained are described and applied to the advanced I & C instrument control system for a 10MW HTGR nuclear power plant. The so-called coarse-grained parallel structure refers to the distribution of the entire plant, based on the concept of global database token bus ARCNET high-speed data trunk computer network system. Medium granularity parallel structure means that some of the above-mentioned computer networks are multi-processor systems based on local storage sharing. Both of them are loosely coupled multiprocessor systems. Two kinds of structures are introduced in reactor I & C system and protection system.