And this kind of bit combines the advantages of PDC bits and drag bits.
在理论分析的基础上,综合PDC钻头和刮刀钻头的优点,设计了一种新型的刮刀钻头,并进行了现场试验。
With reference to the difficulties encountered during boring construction of foundations of Zhanjiang Bay Bridge, this paper describes and discusses how to improve drag bit to make it adapt to the boring construction in hard plastic clay stratum.
针对湛江海湾大桥钻孔施工的难题,论述如何改进刮刀钻头使之适应硬塑粘土层钻孔施工的需要,通过工程实践证明达到了理想的效果。
The forces which the knives of a drag bit and drilling pipes suffer when drilling are analysed.
分析了刮刀钻头钻进时刀刃和钻具的受力情况;讨论了“蹩钻”的原因和控制办法。
Aimed at resolve the several problems which affect drilling efficiency, such as balling up and calcareous cementation, the design of blade bits was modified.
针对钻头包泥堵钻和钙质胶结层难以进尺等影响钻进效率的几个问题,对刮刀钻头结构进行了改进设计,并取得了令人满意的效果。
Study on Bottom Hole Flow Field of B9M-PDC Scraper Bit
B9M型金刚石复合片刮刀钻头井底流场研究
Study on the Effect of the Nozzle of Drag Bits on Bottom Hole Flow Field
刮刀钻头喷嘴直径对井底流场的影响研究
cross-bladed chisel bit
十字刮刀楔形齿钻头
4.14 Drilling with cone (drag) bit in the section.
此段地层采用牙轮（刮刀）钻头钻进。
Shave pins in all bedrooms
所有卧室备有刮脸刀/脱发器插头
Drilling is performed with a rotating tool called a drill.
钻孔是用一个称为“钻头”的旋转刀具进行的。
Use a box knife to continue to shave off the old tip.
使用手工刀继续刮掉先角上剩余的老皮头。
Improvement on Intermediate Frequency Induction Quenching Process of 6CrW2Si Steel Coil Head Scraper
6CrW2Si钢卷头刮刀局部中频感应淬火工艺改进
Tools for woodworking--Drill--Terminology
GB/T14897.4-1994木工刀具术语钻头
Drilling with cone( drag) bit in the section.
此段地层采用牙轮（刀）头钻进。
blade squeegees
刀刃式刮刀,刀刃式刮浆器(圆网印花用)
Blade coater: Machine for blade coating.
刮刀涂布机:用刮刀把涂剂涂布的机器。
ZZM-A drill grinder simple structure, easy operation. One setup to complete grindings on drill web and chisel edge.
a型钻头磨刀机结构简单，使用方便，一次装夹就可以完成钻头的钻尖和横刃的修磨。
The blade would bite into him with a sort of burning coldness, and even the fingers that held it would be cut to the bone.
刮胡子刀片就可以割破喉管，又冷又麻，甚至拿着刀片的手指也会割破，割到骨头上。
unit-type drill head
组合钻床钻头, 标准钻头
Do you sell electric shavers?
你们买电动刮胡刀吗?
He stripped the branch with his knife.
他用刀刮去树枝的皮。
I scraped the skin off the vegetables with a knife.
我用小刀刮去蔬菜的皮。