percussion drilling
常见例句
- Diamond drilling replaced percussion drilling .
金钻探取代了冲击钻探。
www.translation-dictionary.net - It is difficult to calculate the penetration rate (ROP) of percussion drilling.
钻井机械钻速预测是难题。 - For a long time, they used percussion drilling - which basically means they hammered away at the ground to get as deep as they could get.
很长时间里他们用冲击钻井——基本上就是不停地砸地面，直到砸不动。 返回 percussion drilling