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- The experiments use different WOB, rock, drill tooth, drill shift wheelbase, drill speed to obtain multi-group different craters experiment datum.Then calculate the experiment datum. 针对不同的钻压、岩石、钻头齿形、钻头移轴距、转速等因素进行破碎岩石实验，得到多组不同的破碎坑实验数据，并对实验所得的破碎坑进行处理计算。
- Two key factors for drilling high quality holes of carbon fibre reinforced plastics, which are to keep the fine sharpness of the cutting lip of the drill and to use high drilling speed are discussed. 探讨了获得钻削碳纤维复合材料高质量孔的两个关键因素:保持钻头切削刃的良好锋利性和采用高的钻削速度。
- Through field testing,the PDC bit suited for Sulige gas field increased drilling speed and obtained good result. 通过现场试验,大幅度提高了苏里格气田的钻井速度,取得了显著的效果。
- The experiment shows the technique possessing high core recovery rate and quick drilling speed. 试验表明,该技术方法具有岩芯(样)采取率高、钻进速度快的特点。
- The drilling speed in Zhuangxi oilfield is raised significantly by using PDC bit. PDC钻头在胜利油田桩西地区的成功应用,大大地提高了该地区的机械钻速。
- To fulfill the need of high drilling quality and high drilling speed, more rapid and precise observations need to be done on rock drillability. 为满足优质高速钻井的要求,需要对岩石可钻性做出快捷、精确的判断。
- Locale application indicates that it has high drilling speed,longer drilling life and lower cost,and it can be better to meet the demand of exploration engineering. 现场应用情况表明,该种钻头具有高时效、寿命较长、成本较低的优点,能更好的适应勘探工程的需要。
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- No horse has a speed comparable to that of his. 没有一匹马的速度能比得上他的马。
- The sound of that drill jangles horribly on the nerves. 那台钻机的声音响极了，十分刺耳。
- You'd better set a goal before you start the drill. 练习开始前，你最好设定一个目标。
- After a long drill he told the squad to fall out. 操练了好半天之后，他让这个班解散了。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- That's all there is to make a speed dial call. 在那里全部要进行快速拨号呼叫。
- This drill can bore through rock. 这台钻机能钻透岩石。
- The dentist's drill made a lot of noise. 牙钻发出很大的噪音。
- The great virtue of air travel is speed. 乘飞机旅行的最大优点是速度快。
- Because of the low penetration rate and loss of fault in block 32 and 53 in YEMEN,the problem of loss was successfully salved by adopting the foam drilling fluid and accelerated the drilling speed in hard formation by applying the air hammer. 也门 32区块和 5 3区块地层可钻性差、存在断层漏失 ,采用泡沫钻井液有效地解决了井漏问题 ,应用空气锤钻井加快了硬地层的钻进速度 ;
- What's the drill for claiming expenses? 费用报销的手续，是怎样的?
- For the cuttings bed is unstable and it is easy to slide into bottomhole,it may be affect drilling speed and drilling safety and is the danger area of hole cleaning in directional drilling. 介绍江苏局安徽公司现阶段提高大斜度定向井井眼净化程度的系列技术措施,由于受其有效程度所限偶发井下复杂情况和事故。
