off-angle drilling
常见例句
- In order to achieve the goal of fast drilling with dropping-off angle, deviation-controlled straight drilling, new drop angle and deviation prevention techniques must be adopted.
要实现降斜打快、防斜打直的目标，必须突破“轻压吊打”的传统观念束缚，采用新的降斜防斜技术。 返回 off-angle drilling