这项技术不仅能应用于单胸凸的青少年脊柱侧凸患者，还可应用于双主凸的患者。
This technique is applicable not only to a thoracic single curve but also to double major curves in cases of adolescent idiopathic scoliosis.
本发明公开了一种双凸极脉冲式直流电动机，该机由设置着直流绕组的凸极式定子和无电枢绕组的凸极式转子组成。
Double salient pole pulsed DC motor consists of a salient pole stator with DC winding and a salient pole rotor without armature winding.
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