Does your factory keep a quarterly maintenance log book on all electronic devices?
工厂保存一每季电子的装置维护记录书?。
Book for construction machinery operation, maintenance and management of inspection, can also be used as a professional training materials.
本书供施工机械操作、维修和管理人员查阅，还可作为专业培训教材使用。
Book for computer system management, maintenance staff and computer personnel.
本书可供计算机系统管理、维护人员和计算机应用人员使用。
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