Using the value of case credibility, the case retrieval and case library maintenance can be directed to assure the efficiency and credibility of CBR system.

利用评价结果可以指导案例的检索和案例库的维护， 保证CBR系统工作的效率和可信度。

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Directed towards the sequencing diagnosis problem in the system maintenance, the generic description of the system is presented.

针对系统维修中的顺序诊断策略问题，给出了问题的一般描述。

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"Prior to that incident, the military never directed KBR to repair, upgrade or improve the grounding system in the building in which Maseth resided, nor was KBR directed to perform any preventive maintenance at this facility, " Browne said.

CNN: 'Multiple' failures led to Iraq electrocution, Pentagon says