据统计，近几年来我国每年进口的工程机械数量都达4万多台(套)。数以十万计的进口工程机械散布在全国各个建设工地,并发挥着重要的作用。然而由于这些机械的进口渠道多种多样,机型繁杂,良莠参差,虽集中来自于十几个国家和地区,但在使用、维护和修理等方面仍存在诸多问题。对于这些进口工程机械—— According to statistics, in recent years, China has imported more than 40,000 construction machines each year. Hundreds of thousands of imported construction machinery are scattered throughout construction sites in the country and play an important role. However, due to the variety of import channels for these machines, the variety of models, and the mixed results, although concentrated in more than a dozen countries and regions, there are still many problems in the use, maintenance and repair. For these imported construction machinery -