Research and analysis have been made for buckling of long pipe string under gravity.

1、

Research and application of a new type separate layer water injection and testing pipe string

新型分层注水分层测试管柱研究及应用

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2、

Application of torque mechanics analysis of fishing pipe string in trouble well

事故井打捞管柱扭矩分析及其应用

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3、

Research and application of the closed matching exploitation pipe string in low productivity well

低产能油井（层）闭式配套开采管柱的研究与应用

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4、

Development and application of pipe string pressure testing advice for gas lift well

气举井管柱试压装置的研制与应用

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5、

Practice has proved that, Ansys drill string torsional vibration analysis results really have higher economic value, significant effect, and can improve the quality of engineering greatly.

实践证明，Ansys钻杆柱扭转振动分析成果具有较高的经济价值，极大地提高了钻探工程的质量，效果显著。

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6、

Rule and Application about Drill String Vibration of Extend Reach Well

大位移井钻柱振动规律及其应用

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7、

The definition of two special points of drill string and calculation methods

弹性钻柱两个特殊点的意义及计算方法

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8、

Study on Information and Power Transmission Based on An Intelligent Drill String

智能钻柱信息及电力传输系统的研究

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9、

Drill string design of drilling complex formations and its application technique study

复杂地层钻井的钻柱设计及使用技术研究

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10、

Study on Dynamic Characteristics and Failure Mechanism of Drill String in Air Drilling

气体钻井钻柱动力学特性及钻柱失效机理研究

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11、

Calculation and analysis of fatigue strength of drill string in deep well

深井钻柱疲劳强度计算与分析

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12、

The Application of Analytical Technology for Drill String Stress Wave Spectral

钻柱应力波频谱分析技术的应用

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13、

Study on measurement system for dynamic characteristics of drill string's bottom

钻柱近钻头力学特性测量系统功能研究

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14、

The Acquisition System For Drill String Vibration Signals And The Spectrum Analysis

钻柱振动信号采集系统及谱分析

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15、

Computer Simulation of Drill String, Bit and Rock System

钻柱、钻头与岩石系统计算机仿真

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16、

Drill string vibration was analyzed based on vibration theory and finite element method.

根据振动理论和有限元方法，研究了钻柱振动的模态。

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17、

Analyzing the stability of horizontal drill string by using matrix transfer method

用矩阵传递法分析水平钻柱的稳定性

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18、

Although the structure of drill string seems simple, it bears rather complicated outside force.

虽然钻杆柱在结构上看似较为简单，但实际上，它承受着相当复杂的外力。

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19、

Raj: You know who's got to be the bravest person in the Marvel Universe?

拉杰：你们知道谁是Marvel世界里最勇敢的人不？必须是给女绿巨人做比基尼蜜蜡脱毛那位仁兄。.选自《生活大爆炸》第四季第9集

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20、

But Kim Kardashian proved just how useful such a seemingly impractical garment could be as she played in the snow wearing her 'furkini'.

但是，当金·卡戴珊穿着自己的皮毛比基尼在雪地里玩耍时，她证明了自己可以让这种看上去毫无实际意义的东西发挥出作用。

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