查询词典 drill bit

It is pointed out that the essential drilling problem is the unsuitability of the drill pipe,drill collar,drill bit and drilling equipment for the needs of deep large diameter wellbore drilling.

在系统分析了大直径井段中普遍存在的钻井问题的基础上，指出当前深井大直径钻井技术的根本问题，是钻具、钻头、钻井装备与大直径井眼的工艺要求不相适应。

Grant prideco drilling products.co., ltd tianjin tanggu branch is wholly owned subsidiary of nov grant prideco is the world's leader in drill stem technology and drill pipe manufacturing, a global leader in drill bit technology and manufacturing, and a leading provider of high-performance engineered connections and premium tubular products.

格兰特钻具有限公司北京分公司是国民油井华高所属的一家全美资公司。格兰特公司在钻柱技术和生产以及在钻头技术和生产方面一直处于全球领先地位。同时也是全球最主要的高性能钻杆供应商之一。

Drill pipe,Drill bit, Drill collar,Pump Unit, Slurry pump and other petroleum machinery equipments that have been awarded API Certificate.

是VOLVO、三菱、威尔信和卡特等进口发电机及配件东营经销商，同时为各种设备维修提供先进的技术。

When I purchased my new torch I also got an 1-1/16" drill bit with a morse taper on the end. I had to turn the taper off as my drill press would not accept this size. I turned it down to just over 1/2" in order to fit it in my drill chuck.

当我购买了我的新的火炬，我也得到一个1-1/16 &钻头与摩士锥度就结束，我已经把锥度小康作为我的钻床不会接受这样规模的，我把它下降到刚刚超过1 / 2 &，以适应它在我的钻夹头。

Multi angle drill bit, chisel, hole saw, forstner bit, spade bit, auger bit, carbide hole saw, plier set, tool set.

W2G73 全方位多功能钻，石工凿，锁孔钻，碳钢孔锯，木工扁钻，支罗钻，碎粒孔锯，钳子，工具组套。

Because of special geometry structure of three-cone bit, the top of formation will form a tri-spine well bottom while drilling with three-cone bit the drill string. It is the tri-spine well bottom that leads to the axial harmonic of vibration when the bit revolves a round and the three concavo-convex heave of bit and formation result in one time (1×rpm),two time (2×rpm), three time (3×rpm) turning table speed.

高岩由于三牙轮钻头的特殊几何结构，钻进过程中在岩层顶部容易形成一个三脊状井底，正是这一三脊状井底，当钻头旋转一周时钻柱轴向三次凸凹变化，由此在轴向产生1倍、2倍和3倍及其更高次倍于转盘转速rpm的谐波振动。

Because of special geometry structure of three-cone bit, the top of formation will form a tri-spine well bottom while drilling with three-cone bit the drill string. It is the tri-spine well bottom that leads to the axial harmonic of vibration when the bit revolves a round and the three concavo-convex heave of bit and formation result in one time (1×rpm),two time (2×rpm), three time (3×rpm) turning table speed.

高岩摘要：由于三牙轮钻头的特殊几何结构，钻进过程中在岩层顶部容易形成一个三脊状井底，正是这一三脊状井底，当钻头旋转一周时钻柱轴向三次凸凹变化，由此在轴向产生1倍、2倍和3倍及其更高次倍于转盘转速rpm的谐波振动。

Diamond drill bit, alloy drill bit and steel roller shrill b it and so on are available for drilling according to different geological structures.

根据地质结构的不同，可选用金刚石、合金及钢粒等钻头进行钻进。

The inclined capacity of BHA is analyzed, which is affected by various parameters. It is shown that the lateral force of drill bit and inclined capacity of BHA have something to do with the parameters(the distance between drill bit and the first stabilizer, outside diameter of the first stabilizer, WOB etc).

分析影响常用钻具井斜性能的因素，得到了近钻头稳定器与钻头间距变化、稳定器工作外径变化、钻压变化等能够改变钻具井斜性能；同时以一组双稳定器钻具组合为例，分析钻具节点的位移变化图、弯矩图和应力分布图可得出钻具上的受力变形情况。

In addition to four nmerac place position,there are three zone bit positions in a 7-bit code,and four zone bit in an 8-bit code.The 7-bit American Standard Code for Information Interchange is widelu used in data communication work and is bu far the most popular code used to represent data internally in personal computers.

除了4位数字位之外，在7位编码中有3个标志位，而在8位编码中则有4个标志位。7位美国信息交换标准代码广泛地用于数据通信，而且是目前个人计算机内部数据表示中最为流行的代码。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。