percussion drilling
常見例句
- Diamond drilling replaced percussion drilling .
金鑽探取代了沖擊鑽探。
www.translation-dictionary.net - It is difficult to calculate the penetration rate (ROP) of percussion drilling.
鑽井機(jī)械鑽速預(yù)測是難題。 - 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.
很長時間裡他們用沖擊鑽井——基本上就是不停地砸地麪，直到砸不動。 返回 percussion drilling