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由中国石化总公司所属八个设计单位联合开发的石油化工自控专业计算机辅助设计软件包(简称PCCAD ) , 1990年11月2日～8日在无锡举行了推广应用演示会。自本刊1990年第3期、第4期刊出PCCAD和CICAD的简介以及4季度将举行推广应用演示会的消息后,各部门的设计单位纷纷来函来电了解两个CAD和要求参加演示会。参
The petrochemical automation professional computer aided design software package (PCCAD) jointly developed by the eight design units under the China Petrochemical Corporation was held in Wuxi from November 2 to 8, 1990. Since the publication of PCCAD and CICAD in the 3rd issue of the 3rd issue of the magazine in 1990 and the news of the promotion and application demonstration in the 4th quarter, the design units of various departments have sent in letters to understand the two CADs and requested to participate in the demonstration. Senate