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- According to the rock mechanics parameters as the grade value of drillability, hardness of formation and compressive strength, etc. and drilling condition, ty... 通过几口井实际钻头选型的试验研究和应用,达到了提高机械钻速及钻头进尺,缩短钻井周期,降低钻井成本的目的。
- Therefore, the proper peck drilling condition for maximum tool life improvement is drilling with a constant OSFL of a tenth of the drill diameter when drilling AISI 1045. 因此，适当的派克钻井条件改善最大刀具寿命是钻井与不断OSFL的十分之一的 钻头直径钻孔倡议1045年的时候。
- In designing bits for using in high angle deviated holes and horizontal holes, one of the important things is to determine precisely all the forces on the bit under the actual drilling conditions. 在研制大斜度定向井、水平井专用钻头时，一个关键问题就是如何较精确地确定实钻状态下这种钻头在井底的各项受力参数。
- The drilling troops mustered on the hill. 演习部队在小山上集合起来了。
- Do exercise every day and you'll be back in condition. 每天锻炼锻炼，你很快会恢复健康的。
- The workman is drilling in the wall. 工人正在墙上打孔。
- Drilling is cutting a hole with a drill. 钻削就是用钻头钻一个孔。
- He insists the condition to use the best material. 他坚持以使用最好的材料为条件。
- You must on no condition tell him what happened. 你决不能把发生的事情告诉他。
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- The noise of the drilling is intolerable. 钻孔的噪音让人受不了。
- The patient's condition worsened during the night. 病人的情况在夜间恶化了。
- The patient was in a pitiful condition. 那个病人处于一种非常可怜的状况。
- The market offer optimum condition for sale. 市场为销售提供了最佳条件。
- 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。
- The condition or quality of being pure or chaste. 纯洁纯洁或贞洁的状况或者品质
- She had lots of drill in listening. 她在听力方面受过许多训练。
- Do more exercises or you will be out of condition. 多做锻炼否则你会身体不好的。
