查询词典 corn drill

This paper systematically introduces the basic principle and advantages of magnetic particle inspection, the stress analysis of the oil drill collar and the magnetic particle inspection for the screw thread of the oil drill collar.

本文系统介绍磁粉检测基本原理及优点，石油钻铤的受力分析，石油钻铤螺纹的磁粉检测。

This thesis combines the actual inspections on oil drill collar and designs a set of technical criteria and operation code for magnetic particle inspection according to the latest standards and the present testing situation of oil drill collar.

本论文结合实际钻铤探伤，根据最新的标准和油田钻铤的检测现状，设计出了钻铤磁粉检测的工艺规范及工艺卡，对石油钻铤磁粉检测现场操作有指导性的帮助。

We applied high quality of steel from Japan and the United States for raw materials , oil drilling industry as market, advanced technology and equipment as means, financial support as backing to rapidly grow up as a integrated enterprise with a large scale of production and marketing channel for oil casing, pipeline , drill pipe, drill collar, refinery tubing etc.

我们以日本、美国的优质钢材为原材料，以石油钻采行业为市场，以先进的技术装备为手段，以金融界的资金支持为后盾迅速发展成为可以大量生产和供应油套管、管线管、钻杆、钻铤、炼化管等产品的综合性企业。

On the basis of field resources analysis,the drill collar thread model is created by UG,and analyzed the thread stress under different axial forces by finite element method.The structure optimization design process of drill collar is described in the paper.

在现场资料分析基础上，运用UG软件建立了钻铤螺纹联接模型，然后通过有限元软件分析了钻铤螺纹应力分布，得出了钻铤螺纹在不同工况、结构条件下的等效应力分布情况，并对钻铤螺纹结构优化设计过程进行了相应说明。

This is where the drill pipe and collar slips seat when the drill string is suspended from the rotary table for connections or tripping pipe.

当钻柱为了对接或起下钻而悬挂在转盘上时，其为钻杆和吊卡坐放位置。

According to the standards of the petroleum industry in China and the technical criteria and operation code designed by the JB/T4730.4-2005 for oil drill collar magnetic particle inspection, and upon conducting experimental inspections on oil drill collars according to this criteria and through the comparisons of ultrasonic testing results and theoretical analysis, it is found that this technical criteria is able to detect the defects of the screw thread effectively.

根据中国石油行业标准和JB/T4730.4-2005对石油钻铤设计了石油钻铤磁粉检测的工艺规范和工艺卡，并按此规范对石油钻铤进行实验探伤，通过对比超声检测的检测结果及理论分析，此工艺规范可有效的检测出钻铤螺纹部位的缺陷。

If you want to drill a hole in a piece of wood, you will need a drill.

如果你想在一块木头上钻孔，就需要一个钻机。

Then the others reminded him that the drill instructor would return shortly, and it was his fear of the drill instructor's arrival that finally calmed him down.

有人说教官马上要来了，他也便不敢再造次，慢慢安静了下来。

It is significant for adjusting drill pipe sequence to improve average life of drill string.

该研究结果对于现场提高钻柱的平均使用寿命具有重要的工程理论指导意义。

Here I m using a drill press to drill the first holes through the clear top and into the box.

在这里我使用的演练新闻界演练的第一洞，通过明确的顶部和成的方块。

I was just taking her hand, to help her out of a car, and I knew it.

我只是握着她的手，扶她下车，但我知道这一切。

China and South Korea have excoriated Japan over its approval of new school books which they say whitewash the atrocities committed during Japanese occupation, and anti-Japanese protests have been held in Chinese cities. The lingering bitterness over Japan's past imperialism still threatens to mar relations between the big East Asian powers

中国和韩国强烈谴责日本通过新的中学历史教科书，他们认为这一教科书掩盖了日本在其占领期间所犯下的残酷暴行，反日抗议活动在中国数座城市发生，历史上日本帝国主义制造的痛楚无法被忘却，这有可能破坏东亚强国间的关系。