This paper introduces a frequency variable control system for elevator driven by linear induction motor, and this elevator has been tested.
设计了一套圆筒形直线感应电动机驱动的电梯全数字变频控制系统，对其进行了试验。
The main spindle is driven by a variable frequency controlled AC motor.
主轴是由变频控制交流电机驱动。
The Layer Forming Transfer is driven by an AC motor through a gearbox, supplied by a frequency converter.
构成地层转移一交流电念头经过一个齿轮箱驾驶，被一台频率变换器供给。
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