... maintenance control 检修节制 maintenance cost 维修成本 maintenance fitter 维修调养工 ...
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It is a comparatively difficult problem for maintenance cost control in the stage of aircraft operation that how to estimate the engine shop visit cost in the condition of small samples.
小样本情况下进行发动机单次送修成本的估算是在飞机使用阶段控制维修成本的一大难题。
参考来源 - 民用飞机全寿命维修成本控制与分析关键问题研究·2,447,543篇论文数据，部分数据来源于NoteExpress
拥护者认为开放源代码软件更安全，购买价格及维修成本也更为低廉，并且更容易定制。
Supporters say open source software is more secure, cheaper to buy and maintain and easier to customize.
长期来看，非一次性产品的价格较低，但维修成本较高。
Nondisposable products are less expensive in the long term but can be costly to repair.
由于燃料价格和维修成本增加，该公司盈利最多的国际快递业务增长放缓。
Growth slowed in international express deliveries, the company's most profitable business, while fuel and maintenance costs increased.
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