Conclusion The length of the femur medullary cavity, the form of narrow part and the arc were exerting the conditionality function for designing and applying the Chinese intramedullary nail fixation.
结论股骨骨髓腔长度、狭窄部形态及弧度等参数在交锁髓内钉的设计和应用中发挥着制约性作用。
弧长调节功能。
With automatic are length compensating function, stable electric are, less splashing, electric arc has high penetration force.
具有自动补偿弧长功能，电弧稳定，飞溅小，电弧穿透力强。
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