Equipment maintenance, maintenance, repair and other services.
设备的维护、保养、维修等服务。
Lack of oil or the core of the internal parts of the wear and tear may cause travel problems, need to be sent to the designated point of maintenance of maintenance services.
机芯缺油或者内部零件磨损老化都可能引起走时问题，需要送到指定的维修点进行保养服务。
Lack of oil or the core of the internal parts of the wear and tear may cause travel problems, need to be sent to the designated point of maintenance of maintenance services.
机芯缺油或者内部零件磨损老化都可能引起走时问题，需要送到指定的维修点进行保养服务。
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