求翻译：摘要：数控机床是机电一体化高技术产品，它的维护内容比传统机床要多，从内容上涉及到机械、电气、液压、气动、光学与计算机技术等许多专业；尤其在故障诊断、状态监测等方面涉及到数字测试技术与计算机网络技术，同时，数控机床所产生的故障涉及因素较多，要从方方面面去考虑进行故障处理，情况比较复杂，因而给维修工作带来一定的难度。本文介绍了电气故障判别的十四种方法.是什么意思？

Summary: NC machine is electromechanical integration high-tech products, it of maintenance content than traditional machine to more, from content Shang involves machinery, and electrical, and hydraulic, and pneumatic, and optical and computer technology, many professional; especially in fault diagnosis, and State monitoring, aspects involves digital test technology and computer network technology, while, NC machine by produced of fault involved factors more, to from aspects to consider for fault processing, situation comparison complex, thus to maintenance work brings must of difficulty. This article describes the 14 kinds of electrical fault identification method.