On the one hand, the plane positioning is stable and reliable, on the other hand, it is easy to process holes on the machined surface, and can improve the machining accuracy of the hole.

一方面，平面定位稳定可靠，另一方面，在加工过的平面上加工孔比较容易，并能提高孔的加工精度。

youdao

The interlocking intramedullary nail with distal positioning threaded hole is applicable for the internal fixation treatment of the femur, tibia and humerus fractures.

带远端定位螺孔的交锁髓内钉适用于股骨、胫骨及肱骨骨折的内固定治疗。

youdao

The bonding pad of the circuit board is provided with the gap, the gap and the positioning hole are spaced by certain interval to avoid tin leaking.

在电路板的焊盘上开设缺口，该缺口与定位孔相距一定间隔，可避免出现漏锡。

youdao