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一、前言 对任何一种钻探设备的选择,取决于钻机的工作性能、使用者的经验和经济条件。钻机是用于完成地质勘探和钻探工程中钻孔的一种有效的工具。钻孔的目的是为了从钻
I. INTRODUCTION The choice of any kind of drilling equipment depends on the working performance of the rig, the user experience and the economic conditions. Drilling rigs are an effective tool for drilling holes in geological exploration and drilling engineering. The purpose of drilling is to drill from