rock-bit interaction

Uranium mineralization is mainly hosted by strong peraluminous granites,which has undergone intense fluid-rock interaction,and their REE compo.

铀矿体常常赋存在强过铝质、并且后期发生了强烈的流体-岩石相互作用的花岗岩体中,这些岩体典型的稀土元素特征是稀土总量、δEu、LREE/HREE、(La/Yb)N、(La/Sm)N、(Gd/Yb)N比值等均较低,并具有M型四分组效应。

The research on fluid rock interaction has broken through the rather static solid earth philosophy.

流体－岩石相互作用的研究突破了静止的固体地球观。

rock-bit interaction

岩石与钻头互相作用

rock-bit interaction model

岩石-钻头互作用模式

Interaction Model between Formation and Bit during the Elliptic Distribution of Rock Drillability

岩石可钻性呈椭球型分布时地层与钻头相互作用模型

The vertical Interaction Model of cone Bit Teeth-rock

牙轮钻头牙齿与岩石垂向互作用仿真模型

The Research of the Longitudinal Vibration in Cone Bits-rock System;

牙轮钻头与岩石互作用下系统纵向振动研究

Study on Nonlinear Dynamics Action of Integrated Bit-Rock-Drillstring-Well System;

钻头—岩石—钻柱—井壁互作用下系统耦合非线性动力学研究

ANALYSIS OF HOLE TRAJECTORY WITH BIT FORMATION INTERACTION MODELS

钻头与地层相互作用模型用于井眼轨迹分析

PREDICTION OF BOREHOLE TRAJECTORY BY INTERACTION MODEL BETWEEN DRILLING BIT AND STRATUM

用钻头与地层相互作用模式预测井眼轨道

Nonlineaer Study on Dynamic Action of Integrated Drill String-Well Rock System;

钻柱结构与井壁岩石互作用下系统耦合非线性动力学研究

drill ,interchangeable, of base metal, for rock drilling or earth boring

凿岩或钻土用钻头,贱金属制,可互换式

A needle-shaped drill for boring holes in rock or masonry.

钻头，钻石器，钻孔器用于在岩石或砖石上钻孔的针形钻

Study on the Reinforcement Mechanism of Fully Grouted Rock Bolt Considering the Interaction between Bolt and Wallrock Mass

全长注浆岩石锚杆与围岩体相互作用下的锚固机理研究

Research and Application of Diamond-impregnated PDC Bit or Drilling in Medium Hard Rock Formation

中硬岩层钻进孕镶金刚石复合片钻头的研究与应用

Present Situation and Analysis of Interacting Theory between Disc Hob and Rock (Part 1)

盘形滚刀与岩石相互作用理论研究现状及分析(一)

Design and Application of large Diameter Bit in Rock and Soil Drilling

岩土钻探工程大口径钻头设计与应用

Research on Bionic Coupling Diamond Coring Bits in Drilling Hard Rock

硬岩钻进用仿生耦合金刚石取心钻头研究

drill ,interchangeable, of base metal, for hand or machine tolls (excl. those for rock drilling or earth boring)

钻头,可互换式,贱金属制,手工具或机床用（不包括凿岩或钻土用钻机）

Study of Fluid-Rock Interactions in Eogene Formation in Dongying Depression,Bohai Gulf Basin

东营凹陷下第三系流体—岩石相互作用研究