It is suggested that the collection of following information on drill core record compiling, core orientation, mine opening geological record compiling, et...
建议今后从地表填图、钻孔岩心编录、岩心定向、坑道编录等方面加强工程地质资料的收集。
It is suggested that the collection of following information on drill core record compiling, core orientation, mine opening geological record compiling, etc., should be strengthened from now...
建议今后从地表填图、钻孔岩心编录、岩心定向、坑道编录等方面加强工程地质资料的收集。
The riser's inner hollow core (a pipe within a pipe) is reserved for the drill string.
立管内部核心是空心的(管中管)，留给钻柱使用。
A drill assembly is typically a few tens of metres long and can only hold a core of ice of the same length.
一个钻取机通常有数十米长而且只能获取一个与之等长的冰芯。
Core drill machines can be powered by electric hydraulic or air power sources.
核心动力的电动钻机器能、水力和空气动力来源。
This allows the bit to drill around a central cylinder of rock, which is taken in through the bit and into the core barrel.
这样允许钻头围绕岩石的中心圆柱体钻进，并通过钻头进入取芯桶。
Introduction is made on the development, technical parameters, main features, version verification test, production trial and appraisal of CD - 3 core drill.
介绍了CD-3型岩心钻机研制情况、技术参数、主要特点及型式检验、生产试验和鉴定情况。
Core sampling drill for deep seabed shallow strata is necessary equipment in exploration of deep seabed mineral resources and survey of deep seabed geology etc.
深海浅地层岩芯取样钻机是进行深海底矿产资源勘探、深海底地质调查等不可缺少的重大技术装备。
The main concrete cutting tools that are utilized include the wall saw, the flat saw, the core drill, and the wire saw.
混凝土切割工具，主要是利用包括看到墙上，单位锯核心钻、绳锯。
It is suggested that the version of core drill be considered in shallow, medium deep and deep catalogues.
最后提出按浅、中、深不同孔深分挡考虑岩心钻机型式的意见。
In the paper, a new working layer structure of diamond core drill for solving the problem is introduced which can increase the efficiency and the working life of the drilling tool.
文章介绍了金刚石钻孔工具一种新的工作层结构，该结构可以有效解决钻孔工具排粉散热难问题，提高钻孔工具的工作效率，延长钻孔工具的使用寿命。
Based on the prospecting practices of many years, the paper has summarized 8 general lithologic features of core under normal stratigraphic sequence before drilling to the coal-beds in drill hole.
根据多年的勘查实践，总结提出了八条正常地层层序下钻孔见煤前的一般岩心岩性特征，对指导见煤预告等大有裨益。
It is practically proved that frequency distribution of drill-core recovery is partial.
实践证明，岩心钻探取心率的频率分布是偏态的。
My company can produce all kinds of odd and even series of core drill pipe and rope.
我公司可以生产各种规格系列的单双管及绳索取芯钻具。
The invention comprises a handle and a drill bit, wherein the drilling bit has a trocar structure consisting of two parts, namely a sleeve and a tube core needle.
本发明包括手柄和钻头，钻头为套管针结构，包括套管和管芯针两部分组成。
A drill bit used for obtaining core samples in concrete or rock formations.
钻头被用来在水泥或岩层获取岩芯样品。
Process of collecting chip sample returned from drill hole, the related equipment, formula of calculating average assay of core and chip, as well as representativeness of chip are discussed.
阐述了岩屑从钻孔排出的收集过程与有关设备，岩屑定量分析值的计算，并举例说明岩屑的代表性。
A new type of thin-wall diamond core drill bit is developed through the analysis of drilling feature on the r.
通过对在钢筋混疑土、花岗岩等建筑物上钻孔特点的分析，本文设计了一种新型的取芯式薄壁金钢石钻头。
As the core technology of smart drilling, intelligent drill pipe has long been a technical problem which can not be solved by domestic research staff.
智能钻杆作为智能钻井的核心技术，一直是国内研究人员久攻不下的技术难题。
Shanghai Jeichu Machinery &Electric Co. , Ltd. is manufacturer specialized in research, production and sales of Diamond Core Drill, Will Saw and Diamond Series Tools.
上海杰出机电有限公司是集研发，生产，销售于一体的金刚石钻孔机、墙锯机以及金刚石系列工具的专业制造商。
Paper is divided into two parts, core drill equipment and mud system. Through theoretical analysis to experimental method to complete the design of core drilling and mud system.
论文分为取心钻具和泥浆两部分，通过理论分析到实验的方法来完成取心钻具的设计与泥浆体系的建立。
Vice hoist for the replacement of the drill pipe or other tools and put sand core tube can also be used for flushing operations.
钻机配有一个主卷扬机、一个副卷扬机。主卷扬机用于升降钻具、下井管等。副卷扬机用于更换钻杆或其他取芯工具及提砂筒，也可用于洗井作业。
A laser holographic method of measuring the surface Rayleigh-wave rate of the core taken from the oil-drill of Daqing is given. The measured results were analyzed and discussed.
提出油田井下岩芯表面瑞利波的激光全息测试方法，给出了测量结果并进行了分析和讨论。
A laser holographic method of measuring the surface Rayleigh-wave rate of the core taken from the oil-drill of Daqing is given. The measured results were analyzed and discussed.
提出油田井下岩芯表面瑞利波的激光全息测试方法，给出了测量结果并进行了分析和讨论。
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