查询词典 drilling bit

According to various of the technical difficulties such as low drilling efficiency in hard rock and short service life of diamond drilling bit, analysis was made on the inherent links between blade-extruding of hot-pressing diamond and rock abrasiveness.

中文摘要：针对在坚硬致密岩石中钻进时效低和钻头使用寿命短的技术难题，分析了热压钻头的金刚石出刃与岩石研磨性等岩性之间的内在联系，认为钻头的胎体成分及其性能是关键，硬而带脆性的胎体性能有利于金刚石出刃，从而能提高钻进速度。

It now processes solid technical strength and advanced technological equipment, specializing in producing diamond tools :metallic bonding agent, resin bonding agent and rubber bonding agent, Various diamond grinders,core drilling machine, grinding head for fine engraving ,various special polishing wheels (The tool of special use sole diamond wheel), diamond drilling bit,diamond fingers-trimmer,and all kinds of glass special use polish wheel have been the optimum assorter for the glass deep-processing machine and sole proceessing machine.

现拥有 雄厚的技术力量和先进的工艺设备。专业生产：金属结合剂、树脂结合剂、橡胶结合剂系列金刚石工具，如各式金刚石砂轮，金刚石钻头，精雕磨头，金刚石修指器，各式玻璃专用抛光轮等工具。

It now processes solid technical strength and advanced technological equipment,specializing in producing diamond tools :metallic bonding agent,resin bonding agent and rubber bonding agent,Various diamond grinders,core drilling machine,grinding head for fine engraving ,various special polishing wheels(The tool of special use sole diamond wheel), diamond drilling bit,diamond finger-trimmer,and all kinds of glass special use polish wheel have been the optimum assorter for the glass deep-processing machine and sole proceessing machine.

现拥有雄厚的技术力量和先进的工艺设备，专业生产：金属结合剂、树脂结合剂、橡胶结合剂系列金刚石工具，如各式金刚石砂轮，金刚石钻头，精雕磨头，金刚石修指器，各式玻璃专用抛光轮等工具。

Drilling bit ; Cutting stress ; Measurement ; Computer program ; Data acquisition

钻头；切削力；测试；计算机程序；数据采集

A mixture of clays and water; pumped down the drill pipe to lubricate and cool the drilling bit.

泥土和水的混合物，顺钻杆而下，起润滑和冷却钻头的作用。

A new method which is used to promote the reaming quality with a new blade-like drilling bit is presented.

提出了一种用新刃形钻头提高扩孔加工质量的新方法，并分析了其中的机理。

In percussived rilling, the rock is broken only by the impact energy of the drilling bit.

冲击钻井一般可分为冲击式、冲击回转式和回转冲击式三类。

An annular drilling bit to allow core samples to be taken.

用来获取采样的一种环形钻头。

The biggest degree of difficulty on the design of PDC drilling bit s is incapable of accurate localization.

PDC钻头在设计上的最大难度是无法精确定位，一般根据钻头冠部剖面形状的设计参数，靠经验和类比同型钻头来进行设计，设计的反复性比较大。

This paper presents a computer-controlled high speed data acquisition system for measuring the stress change of the cutters on a drilling bit.

研制了一套由微机控制的高速数据采集系统，用于洲试钻头破岩过程中切削齿上所受切削力的瞬态变化规律。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。