加压力大、提拔力大、输出扭矩大，钻探能力强，能满足深孔钻探的需要。
Strong plus pressure, strong elevation force, large output torque and strong drilling capacity can satisfy the demand for deep hole drilling.
救援队正在向330多米深的井下钻探另外三个深孔，以排出有毒气体，然后到达一个六米宽的井室，有关官员认为四名矿工就困在这个井室。
Rescue teams are drilling three additional boreholes more than 330 meters deep to ventilate toxic gases and reach a six-meter-wide chamber where officials believe the miners are.
钻孔偏斜、孔深、岩石硬度被公认为是影响钻探生产效率与成本的三大要素。
As we know, inclining drilling, the depth of drilling and rock hardness is three factors influencing drilling production efficiency and cost.
钻孔偏斜、孔深、岩石硬度被公认为是影响钻探生产效率与成本的三大要素。
As we know, inclining drilling, the depth of drilling and rock hardness is three factors influencing drilling production efficiency and cost.
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