This article introduces the basic operational steps and some common maintenance methods of multimedia projector.
介绍了多媒体投影机的基本操作步骤和一些常用的维护方法。
Different methods of check, observation and repair necessity are given according to different cracks. The common maintenance methods are introduced.
针对不同的裂缝类型，提出检查、观测以及修补必要性的判断方法，并介绍了在日常养护中常用的维修方法。
Common maintenance requires a great deal of effort, time, and coordination.
而一般的维护过程要花费大量的人力、时间和协调工作。
Common maintenance tasks performed by database administrators include reorganization, statistics collection, and backup.
数据库管理员执行的常见维护任务包括重组、统计信息收集和备份。
Common maintenance tasks performed by database administrators include reorganization, statistics collection, and backup.
数据库管理员执行的常见维护任务包括重组、统计信息收集和备份。
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