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- Development of downhole drill motor and problems with its application. 井下动力钻具的发展及其在推广应用中的问题。
- The unit is composed of a 6 1/8" downhole drilling control valve and a 6 1 /8" RTTS multifunction packer. 该装置由61/8英寸钻井井下控制阀和133/8英寸多功能RTTS封隔器组成,可将钻具悬持在井中,密封井眼,起到很好的防台风临时弃井效果。
- Turbodrills is very important downhole drilling tools in petroleum drilling engineering,especially in deep well and deflected well. 涡轮钻具是石油钻井工程中的一种重要井下动力钻具，在深井和定向井钻井中有着广泛的应用。
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- 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。
- 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。
- What's the drill for claiming expenses? 费用报销的手续，是怎样的?
- Mold base to be minimum hardness of 165 BHN. 模座的最低硬度为165布氏硬度。
- Downhole drill hammers and bils 潜孔冲击器和钻头
- The class is chopped up into small groups for oral drill. 为进行口语训练，班级分成为几个小组。
- However, the grades are pretty useless in CS COOP. 四年下来，四五十门课平均超过95分是什么概念，您自个儿掂量吧。
- The best we can do is $ 165 per case CIF. 最优惠价格是每箱cif165美金。
- downhole drill 潜孔钻机
- All 165 people on the jet made it out safely. 机上165人全部安全撤离。
- CS-165 downhole drill Cs-165型潜孔钻机
- Neptune's year is equivalent to 165 years on Earth. 海王星上的一年相当于地球上的165年。
