查询词典 drill bit

Study on bond and diamond of diamond core drill bit for reinforced concrete;2. Also glass ceramic is used as the bond of CBN grinding wheel by examining the properties of new bond .

研究了微晶玻璃中加入低熔物、成核剂后对微晶玻璃热处理曲线、微晶量及微晶体尺寸的影响，并通过测试改性微晶玻璃的软化温度和热膨胀系数对CBN磨粒的把持强度，进而将微晶玻璃用作CBN砂轮结合剂的作用作了研究，经过在数控凸轮轴磨床上的试验证明，微晶玻璃结合剂的CBN砂轮的磨削效果很好。

From Australia's superb hot molding and powder metallurgy technology and strict quality control to avoid the domestic general caused by hot-pressing sintering diamond serious carbonation, damage a common problem, with a diamond drill bit than electroplating package insert firmly with the steel body connected to a reliable and never out of the superiority of teeth.

来自澳大利亚精湛的热成型和粉末冶金技术以及严格的质量控制，避免了国内一般热压烧结造成金刚石严重碳化，损害的通病，又比电镀钻头具有金刚石包镶牢固，与钢体联接可靠，永不掉齿的优越性。

Our company specialized product diamond,CBN grinding tool, galvanization product, diamond emery tape, conditioning hoop, resin cement, bronze cement, ceramic cement grinding wheel, cuts the microsection, drill bit, honing strip,and metal and nonmetallic grinding special-purpose tool.

本公司专业生产金刚石、CBN磨具、电镀制品，金刚石砂带、修整滚轮、树脂结合剂、青铜结合剂、陶瓷结合剂砂轮、切磨片、钻头、珩磨条及金属与非金属的磨削专用工具。

Sewing machine parts, air stapler and nailer parts, drill bit body, stainless steel hardware with satin supface.

产品：工业缝纫机零件、射钉枪配件，锚件钻头类，不锈钢抛丸五金件。

Our company produce various investment casting by colloidal silica binders technique, Such as industrial sewing machine parts, air stapler and nailer parts, Pliers parts, Drill bit body, Locking parts, Hardware parts, and so on.

产品/Product：采用全硅溶胶熔模铸造工艺，生产各种工业缝纫机零件、气动工具配件、工具钳头、工矿钻头、锁配件以及其它五金件等精密铸件。

The present invention relates to a rock drill bit (1) for percussive drilling.

本发明涉及用于冲击钻孔的岩石钻头(1)。

The present invention relates to a drill bit intended for percussive rock drilling.

本发明涉及一种用于冲击岩石钻孔的钻头。

A study on self-excited oscillation nozzle for a drill bit［J］.

石油钻井钻头用自激振荡喷嘴的研究［J］。

Next, take the rock mechanics as a foundation, has analyzed the gas drilling broken rock mechanism; Thought that the gas drilling broken rock mechanism is different with the conventional drilling fluid well drilling, the bottom of the well rock destruction way destroys for the volume, the bottom of the well rock and the drill bit contact plane disproportionality causes the gas well drilling well diviation another reason.

其次，以岩石力学为基础，分析了气体钻井破岩机理；认为气体钻井破岩机理不同于常规钻井液钻井，井底岩石破坏方式为体积破坏，井底岩石与钻头接触平面不均衡性是导致气体钻井井斜的又一原因。

An adjustable stop assembly is also provided and is axially slidable along the drill bit.

还提供了可沿钻头轴向滑动的可调限位组件。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。