- rotary drilling
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回转钻进的英文
例句与用法
- 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。 - Yg - 80a construction drilling rig is a full hydraulic operated top drive power head drill . it is used to drill heavy duty pretension anchor hole at side slope of water power station , railway or highway projects , as well as drainage holes
Yg - 80a型锚固工程钻机是在yg - 80钻机基础上研制的，科学分配钻机性能参数，使钻机更适合岩石潜孔锤钻进跟管钻进，同时兼顾土层合金回转钻进螺旋钻进工艺。