六角头螺栓和螺钉 JIS ; Hexagon head bolts and screws
夹子和螺钉 Clamp and Screw
普通螺栓和螺钉 General purpose bolts and screws
包括石油和螺钉 Includes Oil and Screws
扳手和螺钉旋具 Spanners and screwdrivers
一般用途螺栓和螺钉 General purpose bolts and screws
其他各种螺栓和螺钉 Miscellaneous bolts and screws
T型槽用螺栓和螺钉 Bolts and screws for T-slots
螺栓和螺钉用12孔座 point socket for bolts and screws
螺钉和螺纹部件 screw threads and threaded parts
没有钢板断裂和螺钉切割。
目的：探讨髋臼在其前、后柱上的投影和螺钉放置的安全范围。
Objective: to investigate the X-ray projection of acetabulum on its anterior and posterior column and to develop a safe area for screw placement.
目的：探讨髋臼后柱的解剖学结构和螺钉放置的安全角度和范围。
Objective: to investigate the anatomical structures of the posterior column of the acetabulum and to develop a safe path for screw placement into it.
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