The invention also relates to a method for preparing the natural diamond impregnatedbit.
本发明还包括所述天然金刚石孕镶钻头制备方法。
2
The experimental apparatus and methods for determining the anisotropic index of a diamond impregnatedbit were introduced.
介绍了测定孕镶金刚石取心钻头各向异性指数的实验方法。
3
The necessary technology, which combines the high rotary speed turbine with the diamond impregnatedbit, is put forward to solve the deep drilling problems encountered in West Sichuan.