channery

Rock breaking under water jet impact is an extremely complicated process.

水射流作用下岩石的破碎是一个极为复杂的过程,对水射流作用下岩石破碎机理的认识依然是众说纷纭,由此对水射流破岩机理有多种不同的学说。

The compressive deformation of broken rocks is obviously characterized by time-dependence.

破碎岩石的承压变形具有明显的时间效应,文中自行设计了破碎岩石承压变形仪,结合摆锤杠杆式压力机建立破碎岩石的蠕变测试方法,并针对破碎砂岩开展了相关蠕变试验研究,总结得出蠕变变形与轴向载荷、破碎块径等的关系。

Using multi-material fluid-structure interaction method and ALE method as well as explicit dynamical finite-element method,the complicated process of numerical simulation of rock fragmentation by high-pressure jet is studied according to the characteristics of the process.

针对高压水射流破碎岩石的特性,结合多物质流固耦合算法与ALE(任意拉格朗日欧拉)算法,利用显示动力学有限元程序对该复杂过程进行数值模拟,得出岩石破碎过程中的流体与固体的相互作用及岩石的破碎动态扩展过程并对连续射流冲击与脉冲射流冲击对岩石的切割效果进行对比。

This paper introduces experiments and research results of rock fragmentation process and drilling technology with acoustic spectrum analysis used in Russia.

介绍了俄罗斯采用声谱分析方法研究岩石破碎过程和钻探规程的情况和结果 ,讨论了岩石破碎与声波的关系 ,说明了钻进时如何测量声波 ,分析了孔底功率、碎岩声波和钻头胎体温度与钻探工况 (抛光、正常钻进、烧钻 )的关

According to the fractal theory,a fractal model for consuming energy on rock fragmentation is provided through energy consumption analysis of rock fragmentation in rotary drilling.

该模型显示出旋转钻井岩石破碎能耗不仅与钻压、转速等钻井参数关,还与地层岩石破碎体的尺度和粒度分布分形维数等因素有关。

An unconsolidated mixture of rock fragments or pebbles.

砾石岩石碎片或卵石的松散的混合物

To apply a surface of rock fragments or pebbles to.

用砂砾铺覆以岩石碎片或卵石的表面

Gravel is an unconsolidated mixture of rock fragments or pebbles.

砂砾是砾石岩石碎片或卵石的松散的混合物。

A rock fragment foreign to the igneous mass in which it occurs.

捕虏体指在火成岩中形成的外来岩石碎片

The slow movement of rock debris and soil down a weathered slope.

蠕动岩石碎片和土壤沿着受风雨侵蚀的滑坡向下缓慢移动

A loose deposit of rock debris accumulated through the action of gravity at the base of a cliff or slope.

塌积物在峭壁或斜坡底部由于重力作用堆积形成的岩石碎片松散的堆积物

the vessel was beaten to matchwood on the rocks.

船被岩石撞成碎木片。

The wave smashed the boat against the rock, splinter it to pieces

浪头把船冲向岩石, 撞成碎片

The waves smashed the boat against the rocks, splintering it to pieces.

浪头把船冲向岩石, 撞成碎片.

The freezing of water also breaks off little pieces from rocks.

水的冻结也会使岩石裂成碎片。

Influence of Crushing Value of Granitic Gneiss Coarse Aggregate on Mechanical Properties of Concrete with Different Strengths

片麻岩碎石压碎值对混凝土力学性能的影响

A mass or pile of rubble, refuse, or fragments, as of stone, brush, or ice.

岩石或冰块等的碎片如石头、刷子或冰块的碎片、废弃物或碎石堆小块

Sedimentary rock composed of fine fragments, as of clay or mud.

泥质岩，黏土岩如粘土或湿泥等由细碎片构成的沉积岩石

Physically, the rocks break down into smaller and smaller pieces.

物理变化方面，岩石被分解成越来越小的碎片。

Diagenesis and It's Comparative Study of Pyroclastic Rock, Dowsonite-Bearing Sandstone and Common Sandstone in Hailaer Basin;

海拉尔盆地火山碎屑岩、含片钠铝石砂岩与普通砂岩的成岩作用及其比较研究

Study on mechanical properties and durability of the C60 high strength concrete made from gneiss coarse aggregate in bridge

桥用C60片麻岩碎石高强混凝土的力学性能与耐久性研究

The ship was pounded to pieces against the rocks.

那船在岩石上撞得粉碎.

A machine that crushes rock or ore.

颚形碎石机一种碾碎岩石或矿石的机器