查询词典 cutting bit

And we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.

我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。

During the coal rock cutting, the cutting resistance on the bit is an important data for the design of bit constuction and operating mechanism.

截割刀具—截齿在截割煤岩过程中所承受的各个截割阻力不仅是设计截齿结构的依据，也是工作机构整体设计的一个重要参数。

If the set of type, or you can consider the paper cutting bit larger, so that both ends of the empty part of the paper Wick portion of the water.

如果印数不不小，也可以思考不兵纸弛裁切得稍不小一些，让纸弛两头的空缺局部呼行局部火分。

It has to be tall because it is like a giant block tackle, we have to lower into the ground haul out of the ground great lengths of drill pipe which are rotated by an engine at the top are fitted with a cutting bit at the bottom.

井架必须 ssbbww。 c om 很高， 8 Tt t 8。 com 它像一个巨型滑轮组。 sSBbWw 必须 ssbbww。 c om 把很长的钻杆一节节地钻入地下， 8ttt8.com 再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。

It is sharp, wear-resistant, the PDC can be self-sharpening cutting teeth as a cutting edge in low WOB high penetration rate can be,(cone bit higher than 2 times more) and high-footage (cone bit higher than the 4-6 times), applicable to soft - in the hard formation.

它以锋利、耐磨、能自锐的PDC切削齿作为切削刃、在低钻压能获得高钻速、（高于牙轮钻头2倍以上）及高进尺（高于牙轮钻头4-6倍），适用于软-中硬地层。

In silm hole sidetracking horizontal well, JiDong oil field have the abilities of window cutting, bit optimizing, trace control, drilling fluid and well completion system selecting.

冀东油田在小井眼侧钻水平井方面已具备了开窗、钻头优选、轨迹控制、钻井液、不同完井方式的选择等方面的适合本油田的特色技术。

The existing stone cutting tool, the tool bit is constituted by the sole grade's grinding material, when cutting the rough stone, the cutting speed is quick, the cutting efficiency is high, but the cutting surface fluctuates in a big way, becomes rough, after the cutting, grind and polishing take long time to do, if use the fine grinding compound, the cutting face is smooth, but the cutting speed is slow, the cutting efficiency is low, therefore the existing stone material cutting tool cannot have the high efficiency to cut the stone which have the smooth cutting surface, in view of this, how to keep the high working efficiency and get smooth cutting surface?

现有石材切具刀头由单一粒级的磨料构成，使用粗料时，切割速度快，切割效率高，但切割面起伏大，变得粗糙，切割后研磨抛光耗费时间长，使用细磨料，切割面较平整，但切割速度慢，切割效率低，因此现有石材切具不能高效率地切割出平整的石材，针对这一现状，如何既能高效率切割，又能使切割面保持平整呢？

This kind of quartz stone cutting tool is a technological innovation product, the design structure is novel, it change the use of sole grade grinding compound which is already a traditional manufacture method, it simultaneously used the rough and fine grain grinding compound in the cutting tool different part, ie, by the electricity chromium welded skill, weld the large grain diamond grinding compound on the tool bit top (4050 #) and weld the tool bit both sides the metal polish fine grain grinding compound which the nominal grade value is one level up smaller than large grain grinding compound 100-120

这种石材切具属一项技术创新产品，设计结构新颖，这在于它改变了使用单一粒级磨料的传统制作方法，而是在切具刀头不同部位同时使用粗细粒磨料，也就是在刀头顶面和刀头两侧由电铬焊合艺分别同定粗粒金刚石磨料(4050目)和标称粒级值小于粗粒磨料一级以上的金属抛光用细粒磨料100-120目

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In order to raise drilling speed of the non saline dome wells in Kenkiyak Oilfield, the relationship between rake angles of the cutter, profile of the bit, which have effect on cutting depth and impact-resistant of PDC bit cutters, and cutting efficiency is studied respectively using finite element analysis according to rock properties of the research area. The structure of the PDC bit is then optimized by using the research result.

为提高肯吉亚克油田非盐丘井钻井速度，根据地层岩石力学参数评价结果，利用有限元方法对影响PDC钻头攻击性和抗冲击性的齿前角、冠部形状等结构参数与破岩效果之间的关系进行了研究，并对PDC钻头的结构进行了优化设计。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了