一种带定位器的骨科导钻，用来引导骨钻钻孔方向。
A kind of orthopedics guide drill with a positioning device is used to guide the direction of the bone drill in drilling.
论述了冲击钻钻孔灌注桩施工工艺及断桩和桩身夹泥的处理措施。
The processing measure was introduccd by the impact drilling filling pile construction craft and broken pile and the pile body clamps the putty.
应用实例详细介绍了基于使用过程的FMEA在麻花钻钻孔中的应用。
The application of FMEA to twist drill based on process of using, as an example is introduced particularly.
应用推荐