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- glomerocryst diamond bit 聚晶金刚石钻头
- CAD for crown profile curve fitting of diamond bit. 金刚石钻头冠部曲线拟合的计算机辅助设计。
- The diamond bit design expert system and the computer controlled system for the bit production are described with their uses in production. 介绍了金刚石钻头设计的专家系统和钻头制造的微机自动控制系统，以及在生产中使用的情况。
- Seen from layer structure the using condition of well section and region distribution, diamond bit has ideal market prospect. 从地层结构、井段使用情况、地域分布情况等来看,金刚石钻头具有理想的市场前景。
- In the first place, the paper analyzed the research background, status of the seabed sampling technology and the diamond bit coring technology. 文章首先分析了海底取样技术的国内外研究现状和金刚石钻进技术的概况。
- The performance of electroplated diamond bit is greatly affected by the adaptability of its matrix material performance to the rock drilled. 电镀金刚石钻头的胎体性能对岩石的适应性显著影响钻头的钻进效果。
- The author utilized electrolysis to retrieve polycrystal from on an artificial diamond bit and made them reused, which could reduce actual cost of the bit. 应用电解法回收钻头中的人造金刚石聚晶,使其重复使用,可以降低钻头的实际成本。
- When drilling extra-hard, compact and weak-abrasiveness formation, diamond bit is oftenpolished and slipping. The drilling efficiency, run and the mean life are very low. 金刚石钻头在坚硬致密弱研磨性岩层钻进时,经常出现钻头抛光和打滑现象,钻头时效、使用寿命都非常低。
- The paper introduces the compose and the principle of operation of the tester and the experimentation of testing diamond bit,analyses the results in experiment. 介绍了该仪器的组成和工作原理及利用该仪器测试金刚石钻头的实验过程,分析了实验结果。
- YANG Kai-hua, YANG Chang-rui, ZHANG Shao-he.Research on diamond bit with weak holding for drilling extra-hard formation [J].Exploration Engineering,2001, (Sup.): 251-252,255. [5]杨凯华;杨昌锐;张绍和.;弱包镶金刚石钻头钻进坚硬岩层的研究[J]
- A new type of impregnated diamond bit with two sorts of diamond abrasives has been developed, which can improve both penetration rate and service life simultaneously. 研制出一种两级磨料新型孕镶金刚石钻头，该种钻头解决了时效与寿命不能同步提高这一长期困扰钻头研制者的难题。
- The application field of thin kerf diamond bits is introduced.The way to achieve better economic results of thin kerf diamond bit is presented based on manufaction, use and wear of bit. 对薄壁金刚石钻头应用领域进行了介绍，并从钻头制造和使用及钻头磨损等方面提出了提高薄壁金刚石钻头经济效益的途径。
- Based on analyzing wear mechanism of matrix,use the tester of the Wear resistance of the matrix diamond bit and diamond saw which is made by myself to test and research the diamond bit. 在分析胎体磨损机理的基础上,自制了金刚石钻头和金刚石锯片胎体的耐磨性测试仪对金刚石钻头进行测试研究。
- Some relationship of acoustic emission with longitudial and transverse forces and fragmentation volume have been found in the cutting tests for 10 types of rock using a single diamond bit. 在牛头刨床上通过对10种岩石的切削试验，得到了在单粒金刚石钻头切削作用下岩石声发射活动与切向力、轴向力及破碎体积之间的一些规律。
- He bit off a large piece of the apple. 他咬下一大块苹果。
- She was a bit queer after her husband deserted her. 她遭丈夫遗弃後精神有点失常。
- The diamond ring dazzled with brilliancy. 这只钻石戒指闪耀夺目。
- She wears a diamond ring on her left hand. 她左手上戴着一枚钻石戒指。
- She wore a diamond clip on her new dress. 她在新衣服上戴了一枚钻石别针。
- I reckon the girl is a little bit boyish. 这想这个女孩有点男孩子气。
