潜孔锤钻进 meaning in English
downhole drilling
Examples
- A new tool of preventing drill pipe sticking in air - powered dth drilling
气动潜孔锤钻进中的新型防卡钻具 - 8 it can be used with various drilling method such as carbide bit drilling , anger drilling , dth hammer drilling , follow - up casing drilling etc . 3
8钻机可适用多种钻进工艺方法，如合金回转钻进螺旋钻进潜孔锤钻进跟管钻进等。 - 8 it can be used with various drilling methods such as carbide bit drilling , anger drilling , dth hammer drilling and follow - up casing drilling etc . 3
8钻机可适用多种钻进工艺方法，如合金回转钻进螺旋钻进潜孔锤钻进跟管钻进等。 - 8 the rig is suitable for various drilling methods such as carbide bit drilling , auger drilling , dth hammer drilling , follow - up casing drilling , etc . 3
8钻机可适用多种钻进工艺方法，如合金回转钻进螺旋钻进潜孔锤钻进跟管钻进等。 - 3 transmission , built in the top drive power head , has two speed range ? high and low . it can meet the requirements of both dth hammer drilling and carbide bit drilling
3动力头设有变速装置，有高低两个档次，以满足潜孔锤钻进及硬质合金回转钻进方法。