查询词典 drill bit

In part Ⅲ, effects of abnomal states in drilling process, such as drill wear, drill breakage, chips clogging etc, on feeding force and motor power will be studied in experimental way.

由此推导出了考虑刀具磨损的新的切削力理论公式，在此基楚上，提出了用静态、动态切削力信号监控刀具磨损的基本思想。

Meanwhile, the microstructures and mechanical properties of friction welded drill pipes have been compared with those of hot-upsetting drill pipes.

试验结果表明，采用摩擦焊接及焊后调质热处理工艺制造的DZ60地质钻杆焊接接头的常规力学性能指标均高于地矿部DZ60地质钻杆管材的技术标准规定的数值，并优于采用现行热墩粗工艺制造的钻杆管材的力学性能数值。

The mechanical properties and metallographic structures of the friction welded drill rod and the hot upset forged drill rod pipe are compared.

本文叙述了这种钻杆的焊接性，并与采用热镦粗工艺生产的钻杆管体金相组织和机械性能进行了对比。

Our leading products are drill collars, HWDP, Kellys, casing, All sorts of friction welding drill pipe, geological drilling pipe, all kind of tool joints, lifting subs and non-excavating drilling tool and etc.

公司主导产品是钻铤、整体加重钻杆、方钻杆、石油套管、各种摩擦焊钻杆、地质类管材，配套有各种钻具接头、提升短接以及非开挖钻具等。

In addition, only the impact of China's electric tools electric drill, electric drill, electric hammer and a small number of varieties have electronic speed control functions, most are single-speed products, users should not meet the level of product requirements.

此外，只有中国的电动工具冲击电钻，电钻，电锤和少数品种有电子调速功能，大部分是单速的产品，用户应不符合产品要求的水平。

Company's main products are: electric hammer, electric drill, wall openings, and perforated metal, and woodworking hole, and cemented carbide drill series.

公司生产的主要产品有：电锤、电钻、墙璧开孔器，金属开孔器，木工开孔器，硬质合金钻头等系列。

Production of rigid impact of Hammer Drill, woodworking blades , drill blades , serrated blade, long and thin.

生产硬质合电锤冲击钻头、木工刀片、钻头刀片、锯齿刀片、长条薄片等。

Refer to the diagram, draw the locations of screws on hand winch, angle turner, double-wheel stand top, single-wheel stand top, and drill holes with 8mm percussive drill.

根据阳台结构选择方案 A 或 B （如左/或右有墙，可选 A ，若只有背面墙，可选 B ）。2、参考图示，画出手摇器、转角器、双轮顶座、单轮顶座的螺丝孔位，用8MM 钻头打孔。

Chuzhou·Chaoyang Construction Machinery Factory is a professional engineering machinery breaking hammer supporting manufacturers, to adapt to changes in the market, specially invited more than heat treatment engineer successfully developed a series of drill rod license Chaoyang, Chaoyang Brand drill rod special alloy steel materials, the use of domestic precision processing technology and advanced gas shielded Korea, nitride special heat treatment technology to ensure outstanding product performance and service life.

滁州市全椒朝阳工程机械厂是一家专业工程机械破碎锤配套制造商，为适应市场变化，特聘请多名热处理高级工程师，成功开发出朝阳牌系列钎杆，朝阳牌系列钎杆采用特殊的合金钢材料，采用国内精密工艺技术加工和先进的韩国气体保护、氮化热处理特殊技术制造，从而保证了产品杰出的性能和使用寿命。

Summary: This system imbeds the multi-axis motion controller PMAC card into PC to constitute open numerical control system applied in horizontal twin spindles double column drill press, using the software of the PMAC card, and the software and the hardware resources of PC, this system complete the numerical control function for the horizontal twin spindles double column drill press, and incarnate the open character of the system adequately.

本系统采用多轴运动控制器PMAC卡嵌入PC机的模式，构成一种专门应用于双主轴龙门钻床的开放式数控系统，利用该卡配置的软件和PC机的软、硬件资源，使系统完成双主轴龙门钻床的数控功能，并充分体现系统的开放性。关键词：数控系统，PMAC，双主轴龙门钻床。

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。