改革开放以来，我国各地都有大规模的基础设施建设工程，投入了大量的工程机械、车辆和设备。各种施工机械、设备在运行中发生的故障和维修保养任务绝大部分应在现场予以解决。现场修理能力强可以缩短设备的维修周期，降低设备的故障率，它直接关系到施工的效率。质量和经济效? Since the reform and opening up, various parts of China have large-scale infrastructure construction projects and have invested a large amount of construction machinery, vehicles and equipment. A variety of construction machinery, equipment failure in the operation and maintenance of the vast majority of tasks should be resolved on the scene. The on-site repair capability can shorten the maintenance cycle of the equipment and reduce the failure rate of the equipment, which is directly related to the construction efficiency. Quality and economic efficiency?