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介绍了铁路西安信号工厂实施CIMS工程的背景,给出了总体结构,指出设计中的关键技术并以CAPP/CAM分系统为例阐述了解决方案.“,”This paper introduces the background of projecting CIMS by the XIAN railway signal factory and presents the system construction . On the case of carrying out the CAPP/CAM subsystem, the paper point out that there are some bottlenecks in the factory which should be put emphasis on. The guiding meanings of the design to the railway enterprises are also developed.