Anatomic considerations suggest distinct advantages associated with the use of subcristal pin positioning for pelvic external fixation compared with the alternative pin positions currently employed.
基于解剖学的知识认为，相比目前普遍应用的其他固定针置入方式，骨盆外固定的嵴下入针方式具有其独特的优势。
The end surface of the claw is a machining positioning surface which is perpendicular to the central pin.
所述的卡爪端面是加 工定位面，所述的中心销与定位面垂直。
This can be performed on a special test unit with the pin-point positioning of an indenter.
这可能是执行一项特殊的测试单元与引脚点定位的压痕。
Meanwhile, the four corners are respectively and symmetrically provided with positioning pin holes, so that the assembly of the pressure water reactor fuel element can be more flexible and convenient.
同时，在四角位置分别对称布置定位销孔，从而使压水堆燃料组件的安装更加灵活方便。
The lifting plate is locked automatically by a positioning pin, and then the supporting plate of the pancake is replaced to enable the pancake machine to automatically work again.
定位销自动锁住升降板，然后更换煎饼托板，煎饼机重新自动开始工作。
The connection type between the vertical guide plate of the vertical adjusting mechanism and the positioning plate can adopt compression-fitting connection or dowel pin type connection.
纵向调节机构的纵向导板与定位板之间的连接方式可采用压紧连接或柱销式连接。
The utility model is characterized in that an open drill is provided with a through hole in which an engaged positioning Kirschner pin is arranged.
在开口钻内设有一通孔，通孔内设有与其相配合的定位克氏针。
Said rivet pin can be connected, by means of a rivet positioning tool, to a part of the blind rivet designed for said tool.
铆钉销可以借助于铆钉安插工具与盲铆钉的为此指定的部分连接。
A positioning pin is used for preventing all parts from falling.
用定位销防止各自脱落。
A positioning pin is used for preventing all parts from falling.
用定位销防止各自脱落。
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