1)drilling process钻进过程
1.The dynamic simulation of the drilling process of the PDC bitPDC钻头钻进过程的动态仿真
2.A method for detecting and controlling the vertical-drilling process based on single tilt detector and three movable ribs is analysed and the design of the microcontroller based detecting and controlling device and part of the testing results are given.测试表明 ,该装置能够完成对井深信号和井斜信号的采集与存储、钻进轨迹控制信号的生成 ,并能实现钻进过程的自动纠斜。
3.Based on an analysis of the composition of drilling rig, characteristics of drilling process, and human features, a reliability model of man-machine control system for drilling process is established.在全面分析钻井机械的组成、钻进过程的特点和人的特性的基础上,建立钻机钻进过程人机系统可靠性模型。
英文短句/例句
1.Software Developing of Monitoring and Controlling System of Drilling Process;钻进过程监测与控制系统的软件设计
2.RESEARCH ON A MATHEMATICAL MODEL OF DEEP-WELL DRILLING PROCESS CONTROL BASED ON WEARING FUNCTION OF DRILL BIT基于钻头磨损函数的深井钻进过程控制数学模型的研究
3.The Research & Application of Drilling Monitoring and Controlling Hardware System;钻进过程监测与控制硬件系统研究及应用
4.Experimental Research and the Establishment of Monitoring and Controlling System of Drilling Process钻进过程监测与控制系统的建立与实验研究
5.The Research of Drilling Database Based on SK-DLS and the Primary Practice Used in Drilling Watch;基于SK录井仪的钻参数据库研究及其用于钻进过程监测的初步实践
6.Technology preventing oozing slurry drilling fluid in large crossing drilling engineering大型穿越钻进工程防冒浆钻井液技术
7.engineering boring and drilling devices工程钻探和掘进机械
8.Analysis on balling up caused by helicoid hydraulic motor bypass valve failure in combined drilling technology复合钻井过程中螺杆钻具旁通阀刺漏造成钻头泥包分析
9.- in the internal procedure for toggling the drill state of a member— 在切换成员钻取状态的内部过程中
10.An Analysis of the Process of Axial Vibration Drilling and Chip Length轴向振动钻削过程及其切屑长度分析
11.Theoretical Study on the Stability of Natural Gas Hydrate Drilling;水合物钻井过程中稳定性的理论研究
12.Study on Web Based Simulation System of Drilling Process;基于Web的钻削过程仿真系统的研究
13.Simulation model of drilling process of three-cone bit三牙轮钻头破岩过程计算机仿真模型
14.THE NUMERICAL SIMULATION ANALYSIS OF RAISING THE DERRICK FLOORZJ70DB钻机底座起升过程力学分析
15.ADAMS Dynamic Simulation of Drill Stem in Rotating Course钻杆转动过程的ADAMS动力学仿真
16.Factor analysis of pressure used in managed pressure drilling on injected gas充气控压钻井过程压力影响因素分析
17.deepwater drilling深水钻进、深海钻进
18.On the Course Construction of Drilling Major Based on the Work Process基于工作过程的钻井专业课程体系构建
相关短句/例句
Drilling Process Control钻进过程监控
3)overdrilling['?uv?,drili?]钻进过多
4)drilling process钻井过程
1.A miniaturized information monitoring system for drilling process;钻井过程一种小型化信息监测系统的研制
2.Because of the complexity and uncertainty of drilling process,it is proposed that the prediction and diagnosis of drilling accidents are carried out by artificial neutral network.针对钻井过程的复杂性、不确定性等特点,提出了基于人工神经网络钻井事故预测与诊断模型。
5)boring process钻孔过程
1.Based on the basic features of dynamic gas emission during boring process, a theoretical model for calculating the dynamic volume of gas emission from bore hole is set up.基于钻孔过程中瓦斯动态涌出的基本特点 ,建立了钻孔瓦斯动态涌出量的理论计算模型 。
6)bit break-in procedure新钻头试钻过程
延伸阅读
正规过程和倒逆过程 讨论完整晶体中声子-声子散射问题时,由于要求声子波矢为简约波矢（见布里渊区），所得到的总波矢守恒条件会相差一个倒易点阵矢量G)。例如对于三声子过程有下列条件 ， (1) 式中q1和q2是散射前的声子简约波矢, q3为散射后声子波矢，式(1)中G)的取值应保证q3也是简约波矢。这时会出现两种过程,其一是当q1+q2在简约区内时,可以取倒易点阵矢量G)＝0,式(1)则简化为总波矢守恒条件,称为正规过程或N过程。其二是当q1+q2超出简约区时,所取G)应保证q3仍落于简约区内,由于q3与q1+q2相差G),显然q3位于q1+q2的相反一侧，这时散射使声子传播方向发生了倒转，故称为倒逆过程或U过程。U过程总波矢不守恒,但总能量守恒,因为声子频率是倒易点阵的周期函数，而q3与q1+q2只相差一个倒易点阵矢量。N过程在低温长波声子的散射问题中起主要作用。当温度升高，简约区边界附近的声子有较多激发时，U过程变得十分显著,它对点阵热导有重要贡献。 在能带电子与声子散射问题中存在着与式 (1)相仿的总波矢条件 k+G＝k┡±q， (2) 式中k与k┡分别为散射前后电子的简约波矢,±号分别对应于吸收或发射q声子。类似的在热中子-声子散射以及晶体中一切波的相互作用过程中，总波矢变化都相差一个倒易点阵矢量G),因此也都有N与U过程之分。这是晶体和连续媒质不同之处，连续媒质对无穷小平移具有不变性，才能求得总波矢守恒，而晶体只具有对布喇菲点阵的平移不变性，因此总波矢守恒条件会相差一个倒易点阵矢量。
