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- factors of drilling difficulty 钻探难度因素
- Thixotropy is main characteristic of drilling fluid.In this paper, the thixotropy and influence factors of two types of drilling fluid are analyzed, using three measuring methods. 触变性是钻井液的重要特性之一，本文应用3种测定表示方法分析了粗分散钻井液和两性离子聚合物钻井液的触变性及其影响因素。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- After months of drilling, oil was found off the coast. 经数月钻探，在沿海找到了石油。
- After several months of drilling in the desert, the prospectors struck it rich. 勘探者们在沙漠中花了几个月的时间钻井，终于钻出了石油。
- The determinate factor of our economy is to control inflation. 我们经济的决定性因素是控制通货膨胀。
- Fill tanks with required amount of drilling water. 向泥浆池中加入需要量的钻井水。
- He was rudely awakened by the sound of drilling. 他突然被钻孔的声音吵醒。
- Measure rough dimension of drilling hole. 测量打孔珍珠大致尺寸.
- Influencing Factors of Drill Angle Variation during Axial Vibration Drilling 轴向振动钻削中钻头角度变化的影响因素
- It was a kind of drill, we did it almost daily. 那是一个练习,我们差不多天天都做。
- Essential elements of drill hole. 钻孔具有的结构和尺寸因素。
- So let's analyze the factors of hindrance. 那么让我们来分析一下不利因素吧。
- Investigation about Factors of Drilling Tools Corrosion for Air Drilling 空气钻井中钻具腐蚀影响因素分析
- New recruits have three hours of drill a day. 新兵一天有叁小时的操练.
- Design factors of oilfield heaters. 油田加热炉设计要素及技术发展。
- Influence Factors of Exchange Rate? 影响汇率变动的因素?
- What are the risk factors of osteoporosis? 骨质疏松症的危险因子为何?
- This is the basic factor of the advance in price. 这就是涨价的基本原因
- Another social factor of significance is education. 另一个积极的社会因素是教育。
