Be aware that the concept of change control, and keeping a change log, is generally broader than the troubleshooting arena.

请注意，更改控制的概念，以及保存更改日志，通常比故障诊断所涉及的领域更加广泛。

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Simultaneously introduces the common concept of informatization of sports facilities (stadium and arena), especially, that for Beijing 2008 Olympics and its great significance.

同时给出了体育场馆智能化建设的基本概念及北京2008年奥运会场馆智能化建设情况及其重要意义。

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