The complications, the organizational stopwork and the troubles in drilling operation are the three important elements composing drilling non-productive times.
复杂情况、组织停工、钻井事故是构成钻井非生产时间的三个主要因素。
Therefore, formulate a scientific and reasonable Motor Train maintenance plan is important to guarantee the security operation of Motor Train and reduce the non-productive time of Motor Train.
因此，制定科学合理的动车组检修计划，对于保障动车组的安全运行和提高动车组的运用效率具有重要的意义。
Therefore, formulate a scientific and reasonable Motor Train maintenance plan is important to guarantee the security operation of Motor Train and reduce the non-productive time of Motor Train.
因此，制定科学合理的动车组检修计划，对于保障动车组的安全运行和提高动车组的运用效率具有重要的意义。
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