查询词典 impact drill

ATLAS COPCO INGERSOII-RAND TAMROCK TOYO FURUKAWA MISTUBISH rock tools BOART LONGYEAR rock tools We provide full ranges of Drill button bits, Drifting rods, Shank Adapters, ElementsFilters, Repair Kits for drifters, Diaphragm, Impact Piston, Hydraulic pumps assemblyparts, Rock Drills Motors, Air-oil Separators, Lubricator, Couplingetc.

公司经营产品品牌：阿特拉斯、英格索兰、汤姆洛克、东洋、古河、三菱钻具、宝长年钻具常备全规格钻头、钻杆、钎尾、滤芯、凿岩机修理包、皮碗、冲击活塞、液压主泵总成及配件、凿岩机马达、油气分离器、油雾器、连接盘等，未能尽细，欢迎垂询。

Combined with the macro-morphology appearance analysis and working conditions of failure casing, the paper reached a conclusion that it is due to the impact and friction which come from the drill tools made the fatigue cracks formation on the casing thread root, and eventually leading to casing rupture failure, the material defects in failure casing accelerated crack initiation and growth.

摘 要：某井在钻井作业过程中，发生了上层Φ244.5 mm技术套管断裂失效事故，为了分析事故原因，对失效套管材料的化学成分、金相组织和力学性能进行了检测分析，结合套管失效形貌的宏观分析和套管使用过程中的现场工况分析，得出了套管螺纹发生断裂失效的原因是钻具对套管的撞击、摩擦，使套管螺纹根部产生疲劳裂纹，最终导致套管断裂失效，失效套管的材料缺陷加速了裂纹的萌生和扩展。

Hydraulic hammer model in the figure, you may re-express or bucket excavator machine capacity, but also may indicate that the weight of hydraulic hammer, or drill rod diameter, or hydraulic hammer impact energy.

液压锤型号中的数字，可能表示挖掘机机重或斗容，也可能表示液压锤重量，或钎杆直径，或液压锤冲击能。

Thinking vertically is basically looking for ways to improve the product or service that already exists. It's about finding ways to drill oil while reducing the impact on the environment.

纵向思维基本上是寻找各种方法来提高已经存在的产品或服务质量，比如想方设法钻石油同时减少对环境的影响。

The simulation studies of two commerical impact machines, namely, YYG90 hydraulic rock drill and D12 diesel pile hammer, are performed.

应用微机模拟软件，对两类典型的冲击机械，YYG90液压凿岩机和D12柴油打桩锤，进行了模拟研究，为同类机械的选用和设计提供了理论依据。

That is an air powered grinder (portable grinder, anglegrinder, straight grinder, drill, impact wrench, riveting hammer, hammerdrill).

那是一个气动砂轮机（手持砂轮机、角型砂轮、直型砂轮、钻机、冲击扳手、铆钉锤、锤钻机）。

Is a power tool to focus the design, manufacture and sale of the manufacturing enterprise, the company strictly in accordance with ISO9001: 2000 quality management system operation in the production process, the whole process of product quality control, the use of a sound work installed with a full range of technology to guarantee that is the first approved by the Department of Commerce export Europe and the United States, Japan and other countries of the enterprises, Li Wang—based resource integration of globalization, the internationalization of the operation team, ahead of the process design and perfect after—sale system , developed a truly international quality of the water and electricity installation of automatic slotting machine, a special impact on an electric drill, universal cutting machine, such as conventional power tools, which have a milestone, a revolutionary for carrying the tripod — the deep water and electricity automatic slotting machine global users, as a global market for electric tools manufacturers, our hearts with gratitude Wang, honored to return to China, to return to their homes, because China is the birthplace of China has the world's largest market, China is the real you.

湘潭力王电动工具制造有限公司是一家专注电动工具设计，制造，销售的制造企业，公司严格按照ISO9001：2000质量管理体系运作，在生产过程中，对产品进行全过程质量控制，采用完善的工装机具进行全方位的工艺保证，是国内首批经商务部批准出口欧美、日本等国的企业，力王立足全球化资源整合，国际化的营运团队，超前的工艺设计，完善的售后系统，开发出了真正具有国际品质的水电安装自动开槽机，特殊冲击电钻，万能切割机等常规电动工具，其中具有里程碑式，革命性的扛鼎之作——水电自动开槽机深受全球用户欢迎，作为全球电动工具市场的主要生产商，力王怀着感恩之心，无上光荣回到中国，回到自己的家，因为中国是发源地，中国拥有世界上最大的市场，中国是真正的大家。

Experimental results show that the cement soil can be used as boring medium for model test. Under the same conditions, the drill-type and the screw-pitch have a great impact on the required torque. In the practical application, the optimal bit should be chosen based on engineering geological conditions.

试验结果表明水泥拌合土可作为螺旋挤土模型钻头的钻进介质；在相同成孔条件下，钻头钻进所需成孔扭矩随螺距及钻型呈明显变化，在实际工程应用中应根据地层条件选择较为优化的钻头。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。