The drilling machines may be classified into three general type:Vertical spindle, Multiple Spindle, and Radial Spindle machines.
钻床也许被分为三种一般类型：立式钻床、多轴钻床和摇臂式钻床。
2
The comprehensive interpretation of multiple density interfaces in this area was done by making full use of seismic, drilling, geological, magnetic and gravimetric data.
本文充分利用了地震、钻井、地质、磁力和重力资料，对该区的多层密度界面进行了综合解释。
3
In this paper, pressure profile adjustment technique for multi-layer and multiple pressure system reservoir in adjustment well drilling block during the process of drilling is studied.