Then, based on the plenty analysis of the fundamental aero-engine maintenance task, the breakdown structure of the aero-engine maintenance cost is put forward.
在分析民用航空发动机基本维修工作的基础上提出了发动机维修成本的组成结构。
According to the statistics data, the maintenance cost of the aero-engine accounts for more than 30 percent of the total operating cost of airlines, which reveals much controllable margin.
据统计，航空发动机维护成本占据航空公司直接运营成本的三分之一强，有很大的控制余量。
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