控制维修成本是飞机研制中的一项重要任务，而部件直接维修成本(DMC)的预计是控制过程中的关键步骤。
Controlling maintenance cost is an important task during the aircraft development stage, and estimating the direct maintenance cost (DMC) of the component is a pivotal step in the control processes.
这不仅将直接增加船厂保养维修成本，而且将占用码头泊位，影响其他订单完成进度，船厂经营风险加剧。
This will not only directly increase the shipyards maintenance costs, and will occupy berths, the impact of the completion of the progress of other orders, shipyards exacerbate operational risks.
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