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。
auger drillingとは意味:オーガー?ドリリング auger drilling meaning:[Engineering] A method of drilling in which penetration is accomplished by the cutting or gouging action of chisel-type cutting edges forced into the substance by rotation of the auger bit. Also known...auger drilling перевод:шнековое бурение