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。

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。

This depression automatically centered the bit in the drill press.

抑郁症会自动为中心，这在钻床位。

I used a mini drill press and bit for the pilot holes and then a table top scroll saw to cut out the windows.

我用一个小型钻床和钻头的试验洞，然后一张桌子顶端滚动看到削减了窗户。

Arrow type check valve used to be installed between drill stem and bit to prevent drilling fluid backflow from the bottom.

箭形止回阀用以安装在钻杆和钻头之间防止钻井液从井底回流。

Based on the drilling operation of 4 Wells, this article describes the basic characteristic of coalbed methane and technical difficulties in drilling. Some technical keys as borehole quality, fresh Water drilling,fresh water coring, coal-bed methane protection are solved through application of a series of techno1ogical measures such as optimization of rock bit, optimization of drill stem, optimization of drilling parameters and string coring and etc. The experimental performance, especially in fine-grained ...

本文以四口井的施工为例，着重介绍了煤层气井的特点，并指出了钻煤层气井的几个技术难点，通过钻头优选，钻具优选，钻井参数优选，绳索式取心技术等的现场实施和应用，基本解决了井身质量，清水钻井，清水绳索取心，煤层气保护等几个方面的技术难题，文中还介绍了使用中原油田自行设计的中原9508绳索取心工具的取心情况，尤其是在粉煤层地区的取心情况，这将为今后的煤层气开发打下坚实的基础。

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。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。