Terms containing hole coverage

Subject	English	Chinese
dril.	bottom-hole coverage	井底覆盖
dril.	bottom hole coverage	钻头齿圈对井底覆盖程度
oil	bottom hole coverage	对井底覆盖程度
dril.	bottom hole coverage	钻头与井底接触面积
tech.	bottom-hole coverage	钻头与孔底接触面积
oil	bottom-hole coverage coefficient	井底遮盖系数
oil	bottom-hole coverage rate	井底遮盖系数
dril.	bottom hole coverage rate	钻头齿圈对井底的覆盖率
dril.	hole coverage	钻头在井底覆盖面积
oil	hole coverage	钻头牙齿与井底接触面积
dril.	hole coverage	钻头齿与井底接触面积
tech.	hole coverage	井眼环形空间