释义 |
drilling tool短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 钻孔刀具,镗孔刀具 The fatigue failure of drilling collar thread linking is a main factor of the drill collar failure, which accounts for a large proportion of the accidents in the drilling tool failure. 钻铤螺纹联结失效是钻铤失效的主要因素,在整个钻具失效事故中占很大比例。 chemyq As one functional part of the rig, drilling pump carries the rock debris from the bottom of the well and supplies power to the drilling tool in the well drilling process. 钻井泵是钻机的三大功能部件之一,其在钻井过程中起着携带井底的岩屑和供给井底动力钻具动力的作用。 cnki Research on vibration problems which is the main reason causing bottom drilling tool failure, can reduce drilling tool damage and emergence of underground accidents. 振动问题一直是引起底部钻具失效的主要原因,对其进行研究能减小钻具损害和各类井下事故的发生。 dictall |