螺纹

When thread ing pipe, gauge pipe thread s for size and length to avoid jamming pipe against seat and disc.

当对管道进行攻丝时，要测定管道螺纹的尺寸和长度，避免将管道塞满阀座和阀瓣。

Four oil companies have a dedicated thread processing pipe production lines, annual output reached 100,000 tons or more.

企业拥有四条石油管材专用螺纹加工生产线，年产量达到10万吨以上。

Introduced a new type of helix screw thread pipe heat exchanger, all stainless steel and advanced heat transfer technology in the application of raw material medicine has greatly improved the recovery of solvents to enhance production efficiency, effectively enhanced the competitiveness of enterprises .

介绍一种新型的螺旋螺纹管换热器，全不锈钢材质及先进的换热技术在原料药行业的应用，大大的提高了溶媒回收率，提高了生产效率，有效地增强了企业的竞争力。

Key words: helix screw thread pipe;intermediate medicine; application

要害词：螺旋螺纹管；原料药；应用

This topic is designed to protect the oil pipe thread spinning apparatus for equipment design, In the design process, the teacher asked us to use the knowledge to complete electro-hydraulic design features include spinning machine tool design、 The top end of the design, spinning mechanical design, hydraulic control system design, the design of the transmission system, electrical system and the PLC design.

本次设计题目是石油管螺纹保护帽旋压专用设备设计，在设计过程中，老师要求我们运用机电液的知识完成，设计的内容主要包括，旋压机床总体设计、尾顶的设计、旋压机构设计、液压控制系统设计、主传动系统的设计、电气系统及PLC的设计。

This paper introduces the measuring principle,calculating formula and measuring method of the taps for taper pipe threads through the universal tool microscope.

本文介绍了锥管螺纹丝锥在万工显示上的测量原理、计算公式及测量方法。

Due to the increasing number of deep wells and directional wells being drilled,longitudinal fracture occurred on the box-ended drill pipe tool joint is often reported.

对钻杆接头材料进行SSC试验，发现如果将材料硬度限制在HB310以内，将明显减少钻杆内螺纹接头纵向应力腐蚀开裂失效。

All sizes are provided with tapped retainer cap and closure plug.

所有通径都配置螺纹保护器盖和密封塞。

DO NOT thread, plug or cap the discharge line.

不要对排泄管攻螺纹、堵塞子或加盖。

In consideration of thread fracture of 3515-type plunger pump head widely used in oilfield,the failure analysis is given.

针对在油田广泛应用的3515型柱塞泵液力端一体泵头体存在的螺纹断裂问题，进行失效分析，提出3种改进结构，有广泛的应用前景和市场效益。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。