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航空维修往往被简称为MRO,即维护、修理和大修(Maintenance,Repairand Overhaul),主要分为机体大修、发动机维修、航线维修、设备附件维修和飞机改装五大类。航空维修行业有其独特的特征:如资本投入大、技术壁垒高、行业许可制度严格、人员素质要求高,其服务还具有不定性和时效性。航空发动机维修企业主要是获取客户(如机队、上游发包公司)的订单,
Aviation maintenance is often abbreviated as MRO, namely Maintenance, Repair and Overhaul, and is mainly divided into five categories: airframe maintenance, engine maintenance, airline maintenance, equipment attachment maintenance, and aircraft modification. The aviation maintenance industry has its unique features: such as large capital investment, high technical barriers, strict industry licensing system, and high requirements for personnel quality, its services also have uncertainties and timeliness. Aero-engine maintenance companies mainly obtain orders from customers (such as fleets and upstream contracting companies).