1·With Tools: Did you notice your honey lost or broke his diamond drill bit?
工具：你的爱人的金刚石钻头丢了或者坏了，你发现了吗？
2·To bring forward relatively drillability conception to different drill bit style contemporary, and build they way to predict formation drillability by earthquake wave rate.
同时针对不同钻头类型提出地层相对可钻性的概念，并建立地震层速度预测地层可钻性的方法。
3·In the photo, the spiral striae left by the drill bit can clearly be seen in the plug of the lock.
在图片中，可以清楚地看到锁芯里的由钻头留下的螺旋状印迹。
4·The quantitative calculation of the forces between drill bit and formation is vital for drilling trajectory control.
定量计算钻头与地层之间的作用力对井眼轨迹控制具有重要意义。
5·A drilling technique whereby gases (typically compressed air or nitrogen) are used to cool the drill bit and lift cuttings out of the wellbore, instead of the more conventional use of liquids.
空气钻井是一种钻井工艺，是指利用气体去冷却钻头和把岩屑举升出油井环空，而不是利用更常使用的流体。