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- Keywords rotary navigation drilling;eccentric stabilizer;continuous beam system;transverse vibration;frequency analysis;drilling weight;rotary velocity; 关键词旋转导向钻井;偏心稳定器;连续梁系统;横向振动;频率分析;钻压;转速;
- rotary navigation drilling 旋转导向钻井
- Keywords rotary;navigational drilling;technique;classification;bit; 旋转;导向钻井;技术;分类;钻头;
- Navigation is difficult on this river because of the hidden rocks. 因为河上有暗礁，所以在这条河上航行很困难。
- The drilling troops mustered on the hill. 演习部队在小山上集合起来了。
- The drill string is rotated by rotary table. 钻柱是由转盘驱动的。
- 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。
- The compass is an instrument of navigation. 罗盘是航行仪器。
- Keywords navigational drilling screw drill tool cardan shaft rotary force analysis offset; 导向钻井;螺杆钻具;万向轴;旋转;受力分析;偏移距;
- The gardener asked me for a rotary lawn mower. 园丁向我要一台旋转式割草机。
- 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。
- Keywords rotary drilling;navigational drilling;drilling tool;stabilizer;statics;finite element method; 旋转钻井;导向钻井;钻井工具;稳定器;静力学;有限元法;
- The theory and practice of aircraft navigation. 航空学飞机航行的理论与实践
- 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。
- Navigation is difficult on this river because of the hide rock. 因为有暗礁，在这条河上航行很困难。
- She had lots of drill in listening. 她在听力方面受过许多训练。
