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1·The accurate prediction of running status and maintenance interval for mechanical equipment is important for avoiding serious accident and saving maintenance cost.

对机械设备的运行状态、维修周期的正确预测有助于避免恶性事故的发生，并能节约维修费用。

2·Two maintenance interval models with maximum availability and average cost are proposed, and the importance of the two is determined by the way of expert evaluation.

提出了可用度最大和平均维修费用最低的两种维修间隔期模型，采用专家评分的方式确定二者的重要度，通过计算得出最佳维修间隔期。

3·The maintenance by closed loop feedback of a preselected irradiance throughout a designated exposure interval.

预选辐照整个闭环反馈的维护贯穿于一个指定曝光间隔时间。

4·Regular maintenance of the system should be carried out by trained personnel or the system supplier preferably at quarterly interval.

应由曾受训练的人员或系统供应商定期检查保养系统，宜每季一次。

5·Through fuzzy interval arithmetic based on level sets and optimistic index the entropy weight is given, then the thesis analyses and evaluates maintenance project according to entropy weight.

根据水平截集和乐观指标，进行模糊区间运算，从而得出熵权，再根据熵权的大小对检修方案进行分析与评判。

6·The specific maintenance and overhaul interval will vary with the production cycle and the RAW materials to be processed.

具体的维护、维修时间间隔应视所加工的原料及生产周期等相关问题而定。

7·Weibull distribution fitting model of FMS fault interval was set up, and after relevant analysis, the theory and methods of establishing predicted maintenance scheme for the system were proposed.

建立了CH-85 FMS故障间隔时间的威布尔分布模型，通过对分布模型的分析，提出了基于可靠性制定预维修计划的理论与方法。

8·Maintenance task concepts of the civil aircraft include failure effect and reliability analysis of every component, determination maintenance task and optimization interval et al.

民用飞机的维修任务规划包括全机各组成部分的故障影响及可靠性分析、维修工作确定及其间隔优化等内容。

9·Preventive equipment maintenance is to maintain equipment periodically according to a period and a conventional time interval and is a normal measure for equipment maintenance and management.

预防性设备维护是按周期、约定时间间隔对设备定期进行维护，是设备维护管理常用的手段之一。