查询词典 drilling stem

When the guide hole drilling is completed, unloaded oriented bit, to accommodate tube launchers and connect with reverse bore bit and rotary joint, Then after the rotary joint drill pipe connected to Rafah, to Reamer drilling.

当导向孔钻进完成后，卸下导向钻头、发射器容纳管，接上反向扩孔钻头和旋转接头，然后在旋转接头后接上回拉钻杆，进行回拉扩孔钻进。

The Company may, in accordance with the requirements of the processing parts and design and manufacture of various types of special combination of automated machine tools and automatic lathes, precision-gear automatic tapping machines, reciprocating dedicated machines, fixed multi-axis drilling tapping machines, elevating drilling Tapping dedicated machines, multi-disc special machines, machine tools and various combinations for accessories, dynamic head, boring Xitou and hydraulic slider, at the same time various types of automated machine tools for transformation, maintenance, repair and upgrading.

本公司可根据客户的零件和加工要求来设计制造各类自动化专用组合机床及自动车床，齿轮式精密自动攻牙机，往复式专用机，固定式多轴钻孔攻牙机，升降式钻孔攻牙专用机，多工位圆盘式专用机，以及各类专用组合机床配件；动力头，镗铣头和油压滑台等，同时对各类自动化专用机床改造，保养，维修，升级。

The main products have brooches, buttons, on the clasp, claw drilling, drilling network, serving decorative buckle, apparel chain, waist chain, diamond belt, belt buckle, shoe flower, shoe buckle, shoes chain, and Play button, check mark deduction, belt buckle, buckle lapi, line button, circle button, decorative chain, bell caps and zipper top is widely used in clothing, shoes, hats, handbags luggage products.

主要产品有胸针、钮扣、对扣、爪钻、网钻、服装饰扣、服饰链条、腰链、水钻皮带、皮带扣、鞋花、鞋扣、鞋链、插扣、对勾扣、皮带扣、拉皮扣、线扣、圆圈扣、装饰链条、帽钟和拉链头等广泛地应用于服装、鞋帽、手袋箱包产品。

YG-30 construction drilling rig is used for drilling anchor holes in deep base pit of high building, anchor and reinforce side-slope for water conservatory project, water power station project, railways and highways .

yg - 30施工钻机是用于钻井锚孔在深基坑高层建筑，锚，并加强侧边坡水conservatory工程，水利电力站工程，铁路和高速公路。

YGQ-30 construction drilling rig is used for drilling anchor holes in deep base pit of high building, anchor and reinforce side-slope for water conservatory project, water power station project, railways and highways .

ygq - 30施工钻机是用于钻井锚孔在深基坑高层建筑，锚，并加强侧边坡水conservatory工程，水利电力站工程，铁路和高速公路。

Keywords casing drilling;drill shoe;batch drilling;Dagang Oilfield

套管钻井；钻鞋；批钻井；大港油田

Therefore, the carbide drilling tools is the center of the modern drill steel and drilling tools industry, is becoming the key industry for the new generation of"resources＆ hi-tech ＆export-oriented" national industry and permanent industry. Just as OPEC play a leading role in world oil market, so we could play a leading role in world tungsten market after entering WTO, will open a whole new era---to accomplish the lofty ideal of"promote tungsten industry""recover the old things" for the peace, development and progress of the people.

因此，现代化的硬质合金钎具工业，不但对我国采掘工业和国民经济持续健康发展具有重要意义，它作为我国民族工业中新兴的&资源-高科技-外向型&支柱产业之一，在加入WTO之后，有可能发展成为如同欧佩克组织组织主导世界石油市场一样主导世界钨品市场和全球硬质合金钎具市场，从而为中华凿岩技术光复旧物，为实现国家&振兴钨业&的战略目标，并进而对人类和平、发展与进步的事业作出当代中国人的新贡献。

The 4000 drilling machine is one of the most popular medium-sized drilling machines,most of which apply power units with chain driving boxes.

在我国中型钻机中，4000m钻机是市场拥有量最多的机型之一，其中大部分采用动力机组加链条传动箱方式。

The 4000 drilling machine is one of the most popular medium-sized drilling machines,most of which apply power unit s with chain driving boxes.

在我国中型钻机中，4000m钻机是市场拥有量最多的机型之一，其中大部分采用动力机组加链条传动箱方式。

The dynamics of roller cone bit under the interaction of drilling string,bit and rock during the drilling process was investigated.

摘要研究了钻井过程中钻柱、钻头、岩石相互作用下的牙轮钻头动力学特性。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。