Common Usages:Food handling in restaurants, food processing plants, hair salon, painting, gardening, mechanical repairs, etc.
应用范围：食品加工，家务劳动，油漆粉刷，园艺栽培，机械维修，染发护发等等。
Also not qualifying as conservation is restoration where mechanical repairs are made such as filling holes, smoothing out scratches, and re-engraving of detail.
另外，钱币修补也不等同于钱币保养，其使用填补空洞、磨平划痕、重刻图案细节等机械性修补。
The Navy uses KeyCreator to design mechanical fixtures needed to perform repairs and routine maintenance of various aircraft types serviced by the FRCSW artisans and squadron personnel.
海军购买KeyCreator软件的目的是为FRCSW的工人和飞行人员在修理和日常维护各种飞机时利用该软件设计机械操作台。
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