I hate using the mechanical drills during Design and Technology lessons, because I feel so unsafe operating the drill with my right hand.
我讨厌用机械演习期间设计和技术经验，因为我觉得不安全的作业演练与我的右手。
We can provide various types of drill pipe joints as customer's demand. All mechanical properties are beyond API standard.
我公司可按用户的要求提供各种型号的钻杆接头。各项力学性能均完全超过API标准要求。
The effect of different steelmaking processes on mechanical properties of steel, especially on impact toughness of steel for drill color has been studied.
研究了冶炼工艺对钢力学性能的影响，特别是对钻铤用钢冲击性能的影响。
Mechanical model of the drill carriage with rotation and vibrating hammer for the new type taphole drill is established.
建立了新型开铁口机电动钻冲机构的力学模型，计算了它的固有频率和主振型。
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。
This paper is to study mechanical processing Z3040 radial drill in common use in the traditional electric control system transformation problem.
本论文是研究机械加工中常用的Z3040摇臂钻床传统电气控制系统的改造问题。
The mechanical and electrical improvement to Z5030A upright drill press is introduced in brief and the way how to realize automatic orientation by PLC is also illustrated in details.
简单介绍了对原立式钻床Z5030A进行的机械改进和电气改进，详细阐述了利用P LC给工件自动定位的方法。
According to the mechanics analysis method of BHA and the real work state of drill string in inclined straight well, a mechanical model of BHA is presented.
根据现有钻具力学分析方法和斜直井钻具的实际工作状态，建立了斜直井下部钻具力学分析模型。
The drill bit is a direct tool for rock breakage. The rate of penetration is closely related with the drill bit as well as the mechanical properties of the rocks.
钻头是直接破碎井底岩石的工具，钻井速度的快慢不仅与钻头有关，而且与所钻岩石的力学性质密切相关。
Numerical method is proposed for general mechanical impact systems by means of characteristic line theory . Simulation results of hydraulic rock drill are provided .
应用特征线方法，提出了一般冲击机械的波动力学数值计算方法，给出了一液压凿岩机械的数值模拟结果。
Mechanical model of the drill carriage with rotation and vibrating hammer for the new type taphole drill is established. The natural frequencies and mode shapes of the model are calculated.
建立了新型开铁口机电动钻冲机构的力学模型，计算了它的固有频率和主振型。
Taishan JMZ150 is a new, hydro mechanical anchor drill. This paper presents the design, structure, parameters, characteristics and application examples of the drill.
泰山jmz150型钻机是一种新型的、液机结合的锚杆钻机。介绍了钻机的设计要求、结构、参数、特点及实际施工情况。
A mechanical model for the offset-axes pendulum drill assembly (OAPDA) was established according to the continuous beam theory and the d.
运用纵横弯曲连续梁理论和达朗伯原理，建立了偏轴钟摆钻具组合动力学分析模型。
The small drill bit is easy to show sign of wear and tear in mechanical manufacture.
在机械制造中，小钻头容易破损。
Taishan JMZ150 is a new, hydro mechanical anchor drill.
泰山JMZ150型钻机是一种新型的、液机结合的锚杆钻机。
The utility model relates to a mechanical device for grinding drill bits, and particularly provides a sharpening machine.
本实用新型涉及一种磨削钻头机械设备，具体提供一种磨钻机。
The invention relates to a drill bit impregnated with a diamond film and a manufacturing method thereof, belonging to the field of mechanical processing.
本发明的孕镶金刚石膜的钻头及其制作方法属于机械加工领域。
The invention relates to a drill bit impregnated with a diamond film and a manufacturing method thereof, belonging to the field of mechanical processing.
本发明的孕镶金刚石膜的钻头及其制作方法属于机械加工领域。
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