drill

• Special drilling or adits outside orebody may be required .
  可能要求在矿体外作专门钻探或坑探。
• The prussians are drilling in the meadow behind the sawmill .
  普鲁士士兵在锯木厂后边草地上操练。
• Before charging work is started, the drill holo is plugged .
  开始装药以前，先将炮眼下端眼口堵死。
• The same principle was used in a method of drilling in oilfields .
  油田的钻探方法采用了同样的原理。
• The chinese are credited as the first to have drilled deep water wells .
  最早凿出深井的光荣属于中国人。
• A twist drill is designed to drill a hole which has a particular size .
  麻花钻用来钻削具有一定尺寸的孔。
• It was a sour outcome after all the es in drills .
  在操练中成绩门门优良，如今落得这个下场，真叫人心里别扭。
• The machine's drill busted. they have to stop to fix up a new one .
  机器的钻头破裂了，他们不得不停下来换新的。
• Special guide sleeves are used to obtain greater precision in drilling .
  使用特制导向套管来保证较高的打眼精度。
• As the diamond tip of the drill revolves, it is lubricated by mud .
  钻探机的金钢石钻头转动时，由泥浆起润滑作用。