DHD

Definition: 
Deep Hole Drilling||
English: 
Deep Hole Drilling
German: 
Tieflochbohren
French: 
Forage de trous profonds
Spanish: 
De orificios profundos
Italian: 
Foratura profonda
Russian: 
Глубокое сверление
Romanian: 
Hole de foraj adâncime
Arabic: 
عميق حفر حفرة
Persian: 
سوراخ عمیق حفاری
Chinese: 
深孔钻削
Subject Area 1: 
Drilling & Operations