程序设计语言是办公自动化的重要研究领域，特别是文书工作人员期望有适合他们使用的高级语言。
Programming language is an important design item in office automation system research, particularly for the potential desire of clerks for very-high-level programming language.
介绍了冷轧厂双机架平整机PLC4自动化控制系统的设计、硬件组成以及程序设计。
The design and hardware structure and program engineering of PLC4 automatic control system in the double stands temper mill are described.
另一方面，传统的结构化程序设计方法造成制造自动化软件难以满足可扩展性、可重用性的要求。
On the other hand, traditional manufacturing automation software was developed oriented structure, which hardly satisfies the requirement of reuse and extension.
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