With the development of coal mine enterprises, the underground gas pumping drainage engineering has been widely applied. In the engineering, orifice rotary drilling rig is the key technique, influenced by various factors, it is necessary to take scientific and effective measures to grasp the drilling depth of orifice rotary drilling rig, which can not only improve the working efficiency of the coal mine enterprises, but also provide more accurate data for performance appraisal work. This article will analyze a new type of drilling depth acquisition algorithm.%井下瓦斯抽放工程随着煤矿企业的发展得到了广泛的应用。在井下瓦斯抽放工程中，孔口回转钻机是关键技术，受到各种因素的影响，必须要采取科学有效的措施把握孔口回转钻机的钻孔深度，这样不仅能够提升煤矿企业的工作效率，还可以为绩效考核工作的开展提供更加准确的数据。本文将对一种新型的钻孔深度获取算法进行分析。
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