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- falling off of drill string 跑钻
- Falsehood will fall off of itself. 谎言会不攻自破的。
- Giselle: Is this a habit of yours? Falling off of stuff? 从高处掉落是你的习惯吗?
- The results show that longitudinal vibration of drill string is relative to rotary speed and weight on bit(WOB). 实验结果表明,钻柱的纵向振动主要与转速和钻压有关。
- An example proved the view, while the WOB is transferred by spring and fluid pressure, the vibration of drill string can lie diminished. 实例分析验证了这种观点。同时由于压力是靠弹簧和液压传递的,所以其还有减振的效果。
- It's amazing that you weren't injured after falling off of such a high ladder. 你从这么高的梯子上摔下来居然没有受伤,简直是不可思议。
- The classical fracture mechanic can only explain the static fracture problem of drill string, but it is incapble of explain drill string failure under dynamic load. 传统的断裂力学只能解释石油管柱静态断裂问题,而不能解释动载下钻柱失效问题。
- The effects of WOB fluctuation of drill string on the wellbore trajectory are analyzed by using stochastic finite element method and perturbation equation. 借助随机有限元方法和摄动方程初步分析了钻压波动对井眼轨迹的影响。
- In fact, I'd say my car is a piece of junk too. It's ten years old, it doesn't start half the time, and pieces are always falling off of it. 你的车可不是一堆破烂呢。你倒是应该好好保养它。我叔叔在中国有辆用了二十多年的旧车,到现在还不是走得挺好的。
- The sugar kinds of EPS was consumed most easily, thus created the fall off of biofilm and the dissolve of iron ion. 铁离子更多和糖类官能团连接在一起,EPS中糖类最易消耗,从而造成生物膜脱落,铁离子溶出。
- The sale of red bean fall off considerably in the past few months. 在过去的几个月中,红豆的销量急剧下降。
- The coolness and falling off of respect which Lear had begun to perceive, were not all which this foolish fond father was to suffer from his unworthy daughter. 李尔开始觉察出他那个不肖女儿对他冷淡,越来越不尊敬他,然而这个糊涂而且溺爱的父亲的遭遇还不仅仅这些。
- Twisting vibration of drill string 钻具的扭转震动
- FEM ANALYSIS OF THE FREE POINT OF DRILL STRING 卡点计算的有限元分析
- If an attempt is made to push prices below their equilibrium level, the consequent reduction or wiping out of profits will mean a falling off of supply or less production. 如果强行将价格压低到市场均衡价格之下,那么利润就会随之减少,甚至没有利润,这事实上就意味着供给或生产的衰退。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- Peter fell off of his bicycle, but fortunately he was wearing a helmet. 彼得从自行车上跌了下来,但幸亏他戴着安全帽。
- The key factors affecting frictional pressure loss in narrow annuli are changing annular dimensions, rotation and vibration of drill strings. 影响窄环空中摩擦压降的关键因素为环空尺寸的变化、钻柱的旋转和振动。
- The dynamic boundary condition between revolving drill string and borehole wall is one of the fundamental research contents of drilling string dynamics and torque and drag calculation. 旋转钻柱与井壁的碰撞摩擦边界是钻柱动力学研究和摩阻扭矩计算的基础研究内容。
- Be careful not to fall off the ladder. 当心别从梯子上掉下来。