卵圆孔定位仪
Trigeminal foramen ovale localization instrument
面贴合－孔定位方法
face-hole-alignment method
髓内钉远端锁孔定位
localization of intramedullary nail’s distal locki
扁销孔加工定位方式
the machining and positioning methods of flat pinh
齿轮定位销孔铰孔
gear dowel pin hole reaming