查询词典 bore a hole

The thesis is organized as follows:In Chapter 1,a new partial differential equation model for Spontaneous Potential log in heterogeneous formations is introduced.At the same time,the existence and uniqueness of weak solution to the problem are proved,and the problem of resistance identification in SP log is studied.Furthermore,a jump condition capturing finite difference scheme is proposed and applied to solve such elliptic interface problems.The effects of various factors on SP response,which include objective layers resistivity,bed thickness,bore-hole diameter,invasion and water-flooded zones and so on,are investigated quantitatively by the proposed method, and satisfactory results are obtained.

具体安排如下：第一章首先建立复杂地层中自然电位测井的偏微分方程数学模型，证明了该边值问题弱解的存在唯一性，在此基础上研究了自然电位测井电阻率识别问题：然后发展了用于求解椭圆交界面问题的间断捕捉有限差分方法，利用该方法定量分析了目的层电阻率、地层厚度、井径、侵入带和水淹层等因素对自然电位测井响应的影响，取得了满意的结果。

Some methods that are usually used now and their characteristics of bore-hole trajectory are introduced; Analysis the main factors which affect bore-hole trajectory; A model of rock-bit interaction is developed by accounting for the anisotropic drilling characteristics of both the formation and the bit; Base on the model of static behavior of a bottomhole assembly design a bore-hole trajectory; produce a demo of bore-hole trajectory base on 3DS Max.

本论文对井眼轨迹反演理论及方法作了简要的分类，介绍了几种目前常用的井眼轨迹反演方法及其特点；分析了影响井眼轨迹的主要因素；综合考虑地层和钻头的各向异性钻井特性，建立钻头与地层相互作用模型，基于钻柱底部组合力学模型设计出一条井眼轨迹；制作了基于3DS Max的井眼轨迹演示动画。

This process is similar to an artificial one known as Enhanced Geothermal System which also makes use of the high pressures and temperatures below the Earth's crust. Hot water at a temperature of 46 °C (115 °F) rises here at the rate of 1,170,000 litres (257,364 imp gal) every day,[47] from a geological fault. In 1983 a new spa water bore-hole was sunk, providing a clean and safe supply of spa water for drinking in the Pump Room.

整个过程有点像某种利用地壳内高压高热的人工装置--增强型地热系统。46摄氏度（115华氏温度）的热水从一处地质裂缝流出，每日流量为117万升（25万英加仑）。1983年，一个矿泉水泉眼的下陷为泵房提供了清洁安全的饮用水。

The propagation of elastic wave in a cylindrical bore hole containing a fluid (for example, the muddy fluid is generally used) for acoustic logging is analyzed with a simplified model.

本文分析了简化模型下声波测井时裸眼井中弹性波的传播，此波场可看成是轴向传播有不同波矢的分波的叠加。

After foliaceous be murdered mostly withered, do not form bore a hole.

幼。叶被害后大多焦枯，不形成穿孔。

Experiment through a water work model to the figure which turn on water tower from the hydraulics angle, from the hydraulics angle to the figure structure which turn on water tower and turn on water hole carry on a verification with excellent turn, emphasize research to turn on water tower dissimilarity under the size circumstance of the figure structure of enter the water bore water current flow Tai and release excessive water ability, water current to press a strong circumstance towards turn on water tower tower wall, scaleboard creation of pound at, and put forward more and so releasing excessive water circulate to adjust one degree way.

从水力学角度对放水塔的体形通过水工模型试验，从水力学角度对放水塔、放水洞的体形结构进行验证和优化，着重研究放水塔不同体形结构尺寸情况下的进水孔水流流态、泄洪能力、水流对放水塔塔壁、底板产生的冲击压强情况，并提出较好的泄洪运行调度方式。

OKEE, the spine in the Lathe and lets turn.The easiest is to take a center bore and make a start hole.

okee ，脊椎，在车床，并让turn.the容易的是要采取中心孔，使一个开始，孔。

According to the hole processing in the high accuracy in the repair and machining of coal mine,Have the adjustment of curtting tool generally,disaster and efficiency are lowed and processed the problem that precision is hard to guarantee,Have designed,a kind of trimming bore hole arbor.

该装置利用结构简单的差动螺旋机构，通过斜块实现刀具快速、准确的微调整，达到调整方便、高精、高效。

Reporting in the July 10 edition of the journal Nature, researchers used a high-tech equivalent of a stereo speaker lowered into a bore hole near Parkfield, Calif., a half-mile deep and five yards from a measuring device.

来自《自然》期刊杂志7月10号的报道称，研究者们使用了高科技立体声音箱类似的东西插入加州帕克菲尔德附近的地下钻孔中，插入纵深距离约在半英里，距离测量设备为5码远。

Meters liquid presses drill machine is mainly used to drill to explore various depth as 200 meters any kind of angle of bore . It can drill a hole in the rock of different degrees of hardness. Drilling a hole in the coal seam, soft rock and in the farmland beat the well time and limited efficacy rate .

200米液压钻机主要用于钻探各种深度为200米左右的各种角度的各类用途的孔，可在不同硬度的岩石中钻孔，而在煤层、软岩石中钻孔以及在农田打井时效率最高。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。