At present, ac servo control system has widely applied in automation area, for example NC machine, steel rolling equipment, papermakingequipment and weave machine etc.
目前，交流伺服控制系统已经广泛应用于数控机床、轧钢设备、造纸设备、纺织设备等自动化领域。
2
Quanzhou Huaqing Machinery Manufacture Co. , Ltd in Quanzhou City. , Fujian Province is an enterprise specialized in the production of various kinds of living papermakingequipment.
泉州市华清机械制造有限公司是一家机械及行业设备的企业，是经国家相关部门批准注册的企业。
3
This paper explains the special points in using this method by concrete examples, and Outlines the equipment requirement needed in making magnetotelluric sounding by the remote reference method.