The machine tool is the main manufacturing equipment, and machine equipment is changing for the high complex, high-precision, high speed and modular composite machine currently. This paper briefly introduces the meaning of machine tool, application and development status. Then the paper focuses on the development trend of modular machine tool combined with the latest research.%机床是制造业的主要生产设备，而目前机床设备正朝着高复合、高精度、高速度化和模块化的复合机床发展。简单介绍了组合机床的含义、应用及发展现状，然后结合最新的研究成果重点介绍了组合机床的发展趋势。
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