Result the parameters of posterior arch, lateral mass, vertebral artery groove, axis length of screw pass via posterior arch and lateral mass, projection and direction of screw were measured.
结果测量出寰椎后弓、侧块、椎动脉沟、后弓侧块螺钉通道的轴线长度,及后弓进钉点和进钉方向等参数。
Pass and move, it's the Liverpool groove?
通行证及移动,这是利物浦槽?
The invention adopts a pass-free flat roller to replace a rough rolling pass roller of the prior art and realizes non-groove rolling of the high speed wire rod roughing mill group.
本发明用无孔 型平轧辊代替现有技术的粗轧孔型轧辊实现高速线材粗轧机组无槽轧制。