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任何工程机械使用部门从购机到使用和维修都要讲求经护性。购机前，庆作必要的市场调查，参观有关的经销点。通过察看现场表演了解机器性能和技术水平；通过审视经销点的现代化处息传递系统判断其技术服务的深度和广度；通过交谈和资料阅览确定其配件供应的可能性和及时性。审?
Any engineering machinery use department must pay attention to the careability from purchase to use and maintenance. Before the purchase, celebrate the necessary market surveys and visit the relevant distribution points. Through the inspection of live performances, we can understand the performance and technical level of the machine; determine the depth and breadth of its technical services by reviewing the modern distribution system of the distribution points; and determine the availability and timeliness of its parts supply through conversations and data reading. Review?