西门子负责的部分包括：列车控制及诊断系统、牵引逆变器、辅助逆变器、制动电阻、高压箱及受电弓，以及牵引电动机和齿轮箱。
Siemens' scope of supply includes: train control and diagnosis system, traction inverter, auxiliary inverter, brake resistor, HV box and Pantograph, as well as traction motor and gear box.
目的评价前方牵引器联合快速扩弓矫治恒牙早期骨性前牙反牙合的有效性。
Objective To evaluate the maxillary protraction appliance permanent teeth combined rapid expansion of early bone anterior crossbite effectiveness.
方法：在自行研制的颧骨颧弓骨折微创快速牵引复位固定器基础上，进行多项改进。
Methods Based on the former instrument for rapid tiny-hurt traction, reposition and fixation of fracture of zygomatic bone, various aspect have been improved.
前方牵引器；快速扩弓；骨性前方反牙合。
Front tractor; Rapid expansion bow; The front teeth osteoarthritis.
摘要］目的：研究比较应用链状皮圈或镍钛弓丝在埋伏牙的正畸牵引治疗中的临床效果。
Abstract: Objective The aim of the study was to compare orthodontic traction of impacted teeth, using chain rubber ring or Ni-Ti wire respectively.
结论片段弓正畸技术联合颌间牵引治疗下颌角骨折是一种有效的治疗方法，值得推广。
Conclusion Segment joint between the jaw bow orthodontic traction treatment technology mandibular Angle fracture is a kind of effective treatment methods is worthy to be popularized.
方法在后牙用片段弓正畸技术联合颌间牵引治疗31例下颌角骨折的患者并观察疗效。
Methods with fragments of the back teeth bow orthodontic traction treatment between technical joint jaws in 31 cases of patients with mandibular Angle fracture and watch curative effect.
探讨在乳牙期利用固定扩弓矫治器前牵引的临床效果。
To investigate the therapeutic effects of maxillary expansion and protraction in the primary dentition.
均采用直丝弓矫治器矫治，应用螺旋推簧扩展间隙及上颌前方牵引。
They were all treated with straight wire appliance and helical spring to expand clearance.
对上颌骨骨折病例共25例，经颧弓下悬吊牵引复位固定上颌骨。
Methods: 25 maxillary fracture cases, with internal wiring fixation, wire was passed behind malar bone.
总结复位手法治疗反弓型颈椎病，把用颈椎牵引后进行一般按摩治疗90例作为对照组，与加用该手法治疗120例进行比较。
The dorsad reduction maneuver has been used for treating 120 cases of posticous cervical spondylopathy and 90 cases treated with common massage has been used as control.
方法：通过对12例患者在扩弓及内收切牙时应用牙弓夹板式扩弓矫治器及高位牵引的头帽颏兜加强支抗。
Methods: 12 patients were treated with bonded RME appliance to expanse the maxillary arches and with vertical pull chincap to augment anchorage.
方法：通过对12例患者在扩弓及内收切牙时应用牙弓夹板式扩弓矫治器及高位牵引的头帽颏兜加强支抗。
Methods: 12 patients were treated with bonded RME appliance to expanse the maxillary arches and with vertical pull chincap to augment anchorage.
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