pole change motor meaning in Chinese

换极电动机

Then the speed regulating pole change motor is designed based on the pole - changing principle
根据变极原理设计了螺杆泵用变极调速电动机。
According to the actual working condition of the electric motor on ground drive screw pump , two kinds of new motors are proposed , that is the gearshift multi - power single speed motor and speed regulating pole change motor
摘要根据地面驱动螺杆泵电动机的实际工况，提出了分挡多功率单速和变极调速2种新的电动机设计方案。