In the traditional treatment programs commonly used means of control are extraoral anchorage bow intermaxillary traction transverse palatal bar Nance arch lips files tongue arch and so on .

在传统的治疗方案中，常用的支抗控制手段有口外弓、横腭 杆、 Nance弓、唇挡、舌弓等。

Treatment of Serious Rigid Scoliosis by Halo-pelvic Traction and Harrington Rods Fixation ; Posterior Internal Fixation with Vertebral Pedicle Screw and Bar System to Thoracolumbar Spine Fractures

头盆 牵引及多根哈氏棒固定矫治重度脊柱侧凸经后路椎弓根钉 棒系统内固定治疗胸腰椎骨折

By collecting the stator current and speed signal of the traction motor with the motor parameters this system analysed and handle the data and it is effective to identify the rotor bar breaking fault of traction motor in the various speed conditions .

结合电机参数，通过采集 牵引电机的定子电流及速度信号进行分析处理，该系统能够有效识别各种转速条件下牵引电机的转子断 条故障。