查询词典 tapping drill

Considering the inertial eccentric force and the weight of the drill string, we find that the axis critical force will be obviously less than that under the static state, which will be very important in drill engineering applications.

综合考虑钻柱惯性离心力和自重的影响，我们发现，在工作状态下，钻柱的临界压力会明显地小于静态时的临界力，这对实际的钻探工程来说具有十分重要的指导意义。

The product has five serried and more than eighty specifications. The main products are electric hammer,electric planer, electric drill,circular saw,electric shears, impact drill,angle grinder,vertical grinder,electric floor sander,stone cutter,formed material culter,grass mower,electric lopping shears etc.the company attaches importance to improving product quality and service level.

公司已形成了以"光明"牌为主导的五大类八十多个品种的生产规模及销售网络，其中主要产品有：电锤、电刨、电钻、电园锯、电剪刀、冲击钻、角向磨光机、直向砂轮机、地板砂光机、石材切割机、型材切割机、剪草机、剪枝机等，并取得国家"CCC"认证、"ISO9002"质量体系认证，可提供"CE"、"UL"认证的产品。

Diameter drill pipe design for the 60.3 mm, for the 1524 mm long with a cone-shaped male connector, commonly known as EF / N-type drill pipe.

钻杆设计直径为60.3mm，长为1524mm带有锥形螺纹接头，通称EF/N型钻杆。

I like very much in evening to go to the drill ground of the school up, a person, a pack of dried melon seeds, stroll, at this time of person of the drill ground is not just a lot of, that time, the morning of everyday will have a lot of classmates to come the take exercise here, that just is the most beautiful time.

我很喜欢在晚上到学校的操场上，一个人，一包瓜子，散步，这时的操场上人还不是很多，到了那个时候，每天的早晨就会有很多的同学来这里锻炼，那才是最美的时候。

Methods The clinical data of 43 adult patients (59 sides)suffering from chronic sinusitis with frontal sinus involved were analyzed retrospectively. The frontal sinus ostium was identified by the help of artificial frontal drill (20 cases) or XPS frontal drill (23 cases), and the efficacy was evaluated via postoperative follow-up of all cases. Results The ostia of frontal sinus were successfully opened in all cases, and no serious complications occurred.

回顾分析2004年12月～2007年8月间的额窦炎43例，因术中额窦开口难辨而采用额钉辅助定位，其中使用手摇额钻20例，XPS额钻23例，总结手摇额钻与XPS额钻的优点和缺点、使用过程中常遇到的问题和风险，以及各自的使用方法和注意事项。

Training curriculums place emphasis on both theory and practice, and include laws of the HKSAR, departmental rules and regulations, counselling, social work techniques, management,psychology, criminology, penology, first aid, foot drill, anti-riot drill, self-defence, emergency response tactics, adventure training, field training, Putonghua, Chinese writing skills and personal computer training.

训练课程着重理论与实践，科目包括香港特别行政区法例、部门规例及守则、辅导、社会工作技巧、管理学、心理学、犯罪学、刑罚学、急救、步操、防暴操、自卫、应变策略、冒险训练、实习工作训练、普通话、中文写作技巧和个人电脑训练等。注意，注意力集中

When the percussive drill is used with 8-mm drill, it drills holes for pensile parts for wall cabinets and electric appliances.

冲击钻配用8MM专用钻头，用于吊柜挂件、电器挂件安装的墙体打孔等。

Coal electric drill is the one of the implements of production to excave coal in the pit .The install environment of coal electric drill and power supply system is odious .

煤电钻是井下采掘工作的主要生产工具之一，煤电钻及其供电系统安装环境劣，与工作人员接触频繁，故障率高。

Through analysis of the drilling load characteristics , considering the drilling speciality, basic power driving requirement of the geological drill and automotive emission requirement, this paper discuss how to select power in design of mobile drill rig, engine selection of DPP100 series.

通过对钻探负载特性的理论分析，结合钻探工作的特点和环保对汽车排放的要求，按照地质钻机对动力系统驱动特性的基本要求，对DPP100系列钻机车动力系统选择的研究和方法进行了论述。

This paper first presents the balance principe of moment for sub mersible drill without rod. The model test proved that the principle is correct and the performance of the drill is superior.

本文首次提出力矩平衡无钻杆钻机的概念，通过模型试验证明了设计思想的正确性和钻机性能的优越性，揭示了主要因素与平衡的关系。

For every one of my New Year resolutions, I have been a backslider for years.

说到我的新年决心，我每年都做

With empathy and focus on a feeling level, we can all relate to the common ground of mutuality of emotions.

有了同情心和感觉上一级的重点，我们都可以涉及到相互的情感共同点。