应用信息服务程序使程序可以去访问某些系统保存的信息，例如时间、日期及操作员标识。
Application information give a program access to certain types of system-maintained information, such as the time, data and operator (ID).
首先，由操作员和技术人员组成的一个团队遵循一种系统的方法使设备恢复到基本状态并分析重复出现的问题。
Initially, a team of operators and technicians follow a systematic approach to restore the equipment to basic condition and characterize recurring problems.
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