导向工具 meaning in English

steering tool

The research mainly includes in cakalating quantitatively the steerable force ' s quantity , direction and tool face ' s direction , as well as the steerable tool ' s working situations and drilling parameters that effect on the steerable properties of steerable tool and well path controlling , which is necessary to follow the geologic target while drilling
利用固体力学的有限元法研究了钻跟踪地质目标的导向钻具组合的力学性能，包括定量计算实施随钻民踪顺目标钻并所需的导向力的大小和方向及导向工具面方向。