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系统论述了我国地下装载机系列产品的研制情况，重点介绍了ＷＪ、ＣＹ两个地下装载机系列产品的结构特点和技术创新，并与国外同类产品进行了综合比较。
This paper systematically discusses the research and development of the series of underground loader in our country, mainly introduces the structural characteristics and technological innovation of the series of WJ and CY underground loaders, and makes a comprehensive comparison with similar foreign products.