The upper order computer system manages lower order computers and processes synthetic information.
上位机系统实现对下位机的管理及对综合信息进行加工、处理。
The application system consists of upper order computer system and lower order computer system, it is both a concentrating and a dispersing control system.
该应用系统是由上位机系统和下位机系统组成的集散控制系统。
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